OPINION
ANDERSON, PAUL H., Justice.
Michael Riley Jr.’s family brought a dram shop action against a bowling alley under Minn.Stat. § 340A.801 (2006). The family alleges that the bowling alley’s illegal sale of alcohol caused Riley to be intoxicated, and that this intoxication caused [369]*369Riley to jump to his death into the Minnesota River. The Blue Earth County District Court granted the bowling alley’s request for summary judgment, finding, as a matter of law, that Riley’s intoxication was not a proximate cause of his injury. The Minnesota Court of Appeals affirmed. Because we conclude that a genuine issue of material fact exists concerning the issue of proximate cause, we reverse and remand for trial.
With the exception of the issue of proximate cause, the underlying facts concerning the events that took place before 24-year-old Michael Riley Jr. jumped to his death from the Highway 14 Bridge are undisputed. On April 18, 2001, Riley went out drinking with friends at a bowling alley establishment owned and operated by respondent, Twin Town Bowl, Inc., d/b/a Jerry Dutler Bowl. Twin Town Bowl is located in the city of Mankato. Riley left Twin Town Bowl in the early morning hours of April 19, 2001, and drove off in a motor vehicle. Shortly thereafter, at approximately 1:30 a.m., Trooper Kevin McDonald of the Minnesota State Patrol observed Riley driving 74 miles per hour in a 50 mile per hour zone. At the time, Riley was driving north on Highway 169 in the City of North Mankato. McDonald turned on his patrol car’s emergency lights and sirens and pursued Riley. Riley did not stop his vehicle immediately but instead continued to drive for some distance.
Riley eventually stopped his vehicle near the middle of the Highway 14 Bridge over the Minnesota River. The Highway 14 Bridge connects the cities of North Man-kato and Mankato. When McDonald approached Riley’s vehicle to ask Riley for his driver’s license, McDonald noticed the smell of alcohol. Due to McDonald’s suspicions that Riley was intoxicated, he asked Riley to perform several field sobriety tests, all of which Riley failed. McDonald then directed Riley to blow into a device called a Preliminary Breathe Test (PBT), which showed that Riley’s blood alcohol level was 0.18. As a result of these tests, McDonald advised Riley that he would be placed under arrest for driving while impaired. According to McDonald, up until this point Riley had been cooperative and non-threatening.
McDonald did not handcuff Riley after he advised Riley that he would be placed under arrest. Rather, while Riley remained standing near the front of McDonald’s patrol car, McDonald briefly turned his back to Riley in order to place the PBT in his patrol car. After he turned away from Riley, McDonald faintly heard Riley say, “I’m outta here.” When McDonald turned around he saw Riley running toward the bridge’s railing, which was approximately 3 to 4 feet away from Riley. McDonald yelled, “No!” and tried to reach Riley, but before he could, Riley jumped off of the bridge’s railing and into the Minnesota River. The river was above flood stage at the time. Riley did not survive the jump and several months later his body was found and removed from the river.
Appellants — -Riley’s mother, father, sister, girlfriend, and daughter — brought a dram shop action against Twin Town Bowl under Minn.Stat. § 340A.801 (2006). In their complaint, appellants allege that Twin Town Bowl unlawfully sold alcohol to Riley when Riley was obviously intoxicated, and that this unlawful sale caused Riley to jump to his death into the Minnesota River. Appellants contend that Riley jumped into the river to avoid arrest under the mistaken belief that he could swim safely to shore.1
[370]*370Twin Town Bowl moved to dismiss appellants’ action pursuant to rule 12 and 56 of the Minnesota Rules of Civil Procedure, arguing that the appellants failed to state a claim upon which relief can be granted because Riley’s intoxication was not a proximate cause of his death. The district court denied the motion, concluding that dismissal was premature due to incomplete discovery.
After the completion of further discovery, Twin Town Bowl again moved for summary judgment. As part of their response to Twin Town Bowl’s motion, appellants submitted an expert psychological report as evidence that Riley’s intoxication was a substantial cause of him jumping into the river to escape arrest. The report is an unnotarized affidavit based on the expert’s examination of Riley’s medical and drug history and the expert’s interviews with Riley’s family and friends. The report notes that Riley often experienced blackouts when drinking excessively. Additionally, the report indicates that family and friends told the expert that Riley displayed personality changes while intoxicated, changes that included: “increased energy, flamboyance, grandiosity, aggressiveness, impulsivity, and thrill-seeking.” The report also includes the following information:
Mr. Riley had ⅞ * ⅞ conversations at a local drinking establishment * * *, only weeks prior to his jump, [where he] talked about a person who escaped the Mall of America police by jumping into the river and swimming across ⅜ * ⅜. Mr. Riley told others that he believed he could do the same thing. In his mother’s deposition, she cited conversations with him about his belief and claims and indicated that she tried to discourage him from such thinking because, in her opinion, it was an impossibility.
Based on his investigation, the expert gave the opinion that Riley was possibly in a blackout state when he jumped into the river and that “Riley would not have thought or attempted such an escape were he sober.”2
The district court granted Twin Town Bowl’s motion for summary judgment, finding that there was “no evidence and no genuine issue of material fact as to the essential element of causation.” The court of appeals affirmed, concluding that “[a]b-sent evidence that Riley’s intoxication was the reason for his speeding, [McDonald’s] stop, or Riley’s fleeing arrest, these actions constitute breaks in the chain of causation between Riley’s intoxication and his drowning.” Osborne v. Twin Town Bowl, Inc., 730 N.W.2d 307, 311 (Minn.App.2007). One judge dissented, asserting that dram shop liability depends on “whether the intoxication impaired the patron’s physical or mental faculties so that his injurious actions can be said to result from the overservice and excessive consumption of alcoholic beverages.” Id. at 313 (Ross, J., dissenting). Further, the dissent stated that “[t]he caselaw that defines proximate cause does not invite courts to decide as a matter of law that proximate cause is lacking when, as here, the facts suggest a direct link between the intoxication and the overserved patron’s injurious act.” Id. [371]*371The dissent concluded that “[a] factfinder could decide that Riley’s intoxication so reduced his inhibitions, impaired his judgment, and deluded his perception that he chose imprudently to step from a bridge into a rushing river based on the misper-ception that he could swim safely to its bank.” Id. at 312-13. The sole issue presented on appeal is whether there is a genuine issue of material fact as to whether Riley’s intoxication was a proximate cause of him jumping to his death into the Minnesota River.
We have stated that “[sjummary judgment is appropriate when the evidence, viewed in the light most favorable to the nonmoving party, shows that there is no genuine issue of material fact and the moving party is entitled to judgment as a matter of law.” Anderson v. State, Dep’t of Natural Res., 693 N.W.2d 181, 186 (Minn.2005); see Minn. R. Civ. P. 56.03. But we have acknowledged that summary judgment is a “blunt instrument,” Republic Nat’l Life Ins. Co. v. Lorraine Realty Corp., 279 N.W.2d 349, 356 (Minn.1979), and “is inappropriate when reasonable persons might draw different conclusions from the evidence presented,” DLH, Inc. v. Russ, 566 N.W.2d 60, 69 (Minn.1997). Nevertheless, “[m]ere speculation, without some concrete evidence, is not enough to avoid summary judgment.” Bob Useldinger & Sons, Inc. v. Hangsleben, 505 N.W.2d 323, 328 (Minn.1993). To survive a summary judgment motion, the nonmoving party must therefore establish that there is a genuine issue of material fact through “substantial evidence.” DLH, 566 N.W.2d at 70 (stating that “‘substantial evidence’ refers to ‘legal sufficiency and not quantum of evidence’” (quoting Murphy v. Country House, Inc., 307 Minn. 344, 351, 240 N.W.2d 507, 512 (1976))).
On appeal, we review a grant of summary judgment “to determine (1) if there are genuine issues of material fact and (2) if the district court erred in its application of the law.” K.R. v. Sanford, 605 N.W.2d 387, 389 (Minn.2000). When summary judgment is granted based on application of the law to undisputed facts, as is the case here, the result is a legal conclusion that we review de novo. Lefto v. Hoggsbreath Enters., Inc., 581 N.W.2d 855, 856 (Minn.1998); see also Morton Bldgs., Inc. v. Commissioner, 488 N.W.2d 254, 257 (Minn.1992).
Minnesota Statutes § 340A.801, the Civil Damages Act, is commonly referred to as the Dram Shop Act. Subdivision 1 of the act states:
A spouse, child, parent, guardian, employer, or other person injured in person, property, or means of support, or who incurs other pecuniary loss by an intoxicated person or by the intoxication of another person, has a right of action in the person’s own name for all damages sustained against a person who caused the intoxication of that person by illegally selling alcoholic beverages. All damages recovered by a minor under this section must be paid either to the minor or to the minor’s parent, guardian, or next friend as the court directs.
We have said that the general purpose of the Dram Shop Act is “‘to punish an offending vendor and deter others from making illegal sales of liquor, and to compensate those who would under ordinary circumstances or other tort principles obtain no recovery for their injuries.’” Hannah v. Chmielewski, 323 N.W.2d 781, 784 (Minn.1982) (quoting Randall v. Village of Excelsior, 258 Minn. 81, 84, 103 N.W.2d 131, 134 (1960)). Because the Dram Shop Act creates a remedy that did not exist at common law, it must be strictly construed “in the sense that it cannot be enlarged beyond its definite scope.” Beck v. Groe, 245 Minn. 28, 34, 70 N.W.2d 886, 891 [372]*372(1955). But when the Act’s language is clear as to intent and purpose, we have “liberally construed [it] so as to suppress the mischief and advance the remedy.” Id. at 34, 70 N.W.2d at 891.
To prevail in a dram shop action under section 340A.801, the claimant must first prove that the sale of alcohol was illegal under Minn.Stat. ch. 340A. Rambaum v. Swisher, 435 N.W.2d 19, 21 (Minn.1989). The claimant must then “show by competent proof’ that the illegal sale of alcohol “caused or contributed to * * * intoxication and that the same was a proximate cause of the [claimant’s] injuries.” Kryzer v. Champlin Am. Legion No. 600, 494 N.W.2d 35, 36 (Minn.1992) (quoting Hartwig v. Loyal Order of Moose, Brainerd Lodge, 253 Minn. 347, 355, 91 N.W.2d 794, 801 (1958)). For purposes of this appeal, Twin Town Bowl does not dispute that it illegally sold alcohol to Riley in violation of Minn.Stat. ch. 340 or that this sale caused Riley’s intoxication. Therefore, the sole issue before us is whether the district court erred when it granted summary judgment based on its conclusion that Riley’s intoxication was not, as a matter of law, a proximate cause of his decision to jump into the Minnesota River.
We have held that the causal relationship between intoxication and injury required to prevail in a dram shop action is proximate causation. Id. at 36-37 (rejecting the “but for” causation test and stating that proximate causation is required to recover under the Dram Shop Act). In the context of general tort liability, such as negligence actions, we long ago defined a proximate cause of a given result as “a material element or a substantial factor in the happening of that result.” Peterson v. Fulton, 192 Minn. 360, 364, 256 N.W. 901, 903 (1934); see George v. Estate of Baker, 724 N.W.2d 1, 10 (Minn.2006) (“Minnesota applies the substantial factor test for causation. The negligent act is a direct, or proximate, cause of harm if the act was a substantial factor in the harm’s occurrence.”). In fact, we have equated the term “proximate cause” with the term “substantial factor.” Lestico v. Kuehner, 204 Minn. 125, 133, 283 N.W. 122, 127 (1938) (“The jury should have been instructed that, whatever the speed, if it was not a proximate cause, that is, if it did not contribute as a ‘substantial factor’ to the result, there could be no liability in the absence of some other act of negligence by defendant.”); see also Peterson, 192 Minn. at 364, 256 N.W. at 903 (indicating that the draft of the Restatement of Torts replaced the term “proximate cause” with “substantial factor”). Additionally, the Civil Jury Instruction Guide directs district courts in dram shop cases to instruct juries on causation by using the causation standard in negligence cases-that the intoxication “had a substantial part in bringing about the [injury].” 4 Minn. Dist. Judges Ass’n, Minnesota Practice-Jury Instruction Guides, CIVJIG 27.10 (5th ed.2006); see 4 Minn. Dist. Judges Ass’n, Minnesota Practice-Jury Instruction Guides, CIVJIG 45.30 (5th ed.2006) (stating that the direct causation standard for dram shop actions is the same as the CIVJIG 27.10 causation standard used in negligence cases).
Moreover, in the dram shop context itself, in regards to whether the illegal sale of alcohol caused the intoxication, we have adopted the general tort proximate cause definition, requiring only that the illegal sale is a contributing or substantial cause of the intoxication.3 E.g., Kryzer, [373]*373494 N.W.2d at 36 (“[T]he liquor illegally sold need not be the sole cause of intoxication, * * * it is enough if it be a ‘proximately contributing cause.’” (quoting Hahn v. City of Ortonville, 238 Minn. 428, 432, 57 N.W.2d 254, 258-59 (1953))). We have not in the past departed, nor do we presently see any reason to depart from the general tort principles of proximate cause in the dram shop context, which is based in tort liability. See Dahl v. Northwestern Nat. Bank of Minneapolis, 265 Minn. 216, 221, 121 N.W.2d 321, 324 (1963). Thus, as is consistent with our general tort law and our dram shop case precedent, for proximate cause to exist between the intoxication and the injury in a dram shop action, we conclude that the intoxication must have been a substantial factor in bringing about the injury.
Whether proximate cause exists in a particular case is a question of fact for the jury to decide. Norberg v. Northwestern Hospital Ass’n, Inc., 270 N.W.2d 271, 274 (Minn.1978). While “[i]n most cases, proof that intoxication caused the plaintiffs injury is not an issue,” in some cases “a plaintiffs injury may be caused by factors that are entirely unrelated to the * * * intoxication.” 5A Roger S. Haydock & Peter B. Knapp, Minnesota Practice, Methods of Practice § 3.10 (4th ed.2007). For example, in Kryzer, an intoxicated patron was ejected from a bar and was injured by a bar employee who removed her from the premises. 494 N.W.2d at 36. We concluded that the patron’s intoxication, while a possible “occasion” for her ejection from the bar, was not a cause of her injury; it was the employee’s actions while removing the patron that resulted in the patron’s injuries. Id. at 37. Similarly, in Crea v. Bly, an intoxicated female bar patron encouraged a male patron to attack the plaintiff, which the male patron did. 298 N.W.2d 66, 66 (Minn.1980). We held “as a matter of law that there was a break in the chain of causation between” the female patron’s intoxication and the injuries the male patron inflicted on the plaintiff. Id.
In Kunza v. Pantze, the defendant became intoxicated at a bar and then left the bar with his wife in a motor vehicle. 527 N.W.2d 846, 847 (Minn.App.1995), rev’d Kunza v. Pantze 531 N.W.2d 839, 839 (Minn.1995). While driving the vehicle, the defendant began abusing his wife and as a result of the abuse, she jumped out of the moving vehicle to avoid further abuse. Id. The district court concluded that proximate cause did not exist between the defendant’s intoxication and the wife’s injuries from jumping out of the vehicle because the wife voluntarily opened the vehicle door, “thereby severing the causal chain.” See id. at 848. On appeal, the court of appeals reversed the district court, reasoning that injuries resulting from an attempt to avoid the direct consequences of wrongful conduct can be proximately caused by that wrongful conduct. Id. at 850-51. The court of appeals likened the wife’s jumping out of the vehicle to a driver’s attempt to avoid crashing into the vehicle of a negligent driver. Id. But on review, we summarily reversed the court of appeals’ decision and reinstated the district court’s grant of summary judgment. Kunza v. Pantze, 531 N.W.2d 839, 839 (Minn.1995).
Twin Town Bowl argues that as in Kryzer, Crea, and Kunza, Riley’s intoxication [374]*374was the “occasion” but not the “cause” of his injury. Twin Town Bowl also argues that it was Trooper McDonald’s reaction to Riley — McDonald stopping, arresting, and not handcuffing Riley — that caused Riley’s injury, not Riley’s intoxication. Conversely, appellants argue that all of the above cases can be distinguished because a third party was responsible for the injury in each of those cases, whereas here, it was Riley’s own impaired decision to jump into the river that directly caused his injury.
Appellants are correct when they assert that in Kryzer, Crea, and Kunza we concluded there was no proximate cause because the injuries in question were caused by the choices and actions of a third party. In Kryzer, the bouncer’s handling of the intoxicated patron caused the patron’s injuries. In Crea, the friend of the intoxicated female patron assaulted the plaintiff.4 In Kunza, the sober wife opened the door, jumped out of the moving vehicle, and caused her own injuries. In all three cases, something other than the intoxicated party’s actions or decisions led to the injury. Thus, in each case we concluded that summary judgment was appropriate because, as a matter of law, the intoxicated party’s faculties, which were impaired by alcohol, could not have directly caused an injury that resulted from the actions and choices of another person.
In this case, we conclude that it was not the choice of a third party, but instead Riley’s own choice that caused his injury. It was Riley’s decision to jump into the river, and him acting on that decision, that led to his death. While Twin Town Bowl argues that McDonald’s reaction to Riley caused Riley’s injury, Riley’s decision to jump into the river could not have been caused by McDonald. McDonald placing Riley under arrest and not handcuffing him may have given Riley the occasion to make a decision about whether he should jump into the river to avoid arrest, but it was Riley who chose to and did jump into the river.
Unlike the actions of a third party, it is possible that Riley’s choices and actions substantially resulted from his intoxicated state of mind. Much like an intoxicated driver who speeds up at a red light because his alcohol-impaired judgment leads him to believe he can make it through an intersection before an oncoming vehicle arrives, Riley’s decision to jump off a bridge when faced with arrest could have been substantially and directly caused by his alcohol-impaired judgment. Cf. Kvanli v. Village of Watson, 272 Minn. 481, 485, 139 N.W.2d 275, 278 (1965) (concluding that a jury could infer “that lack of judgment or perception resulting from [a driver’s] intoxication * * * was a proximate cause” of the driver hitting a pedestrian with his motor vehicle). Thus, we conclude that unlike the cases where we have affirmed the summary dismissal of a case because proximate cause did not exist, in this case it is not clear that Riley’s injuries were “caused by factors that are entirely unrelated to [his] intoxication.” 5A Haydock & Knapp, supra § 3.10. On this point, we agree with the reasoning of the court of appeals dissent that “[t]he caselaw that defines proximate cause does not invite courts to decide as a matter of law that proximate cause is lacking when, as here, the facts suggest a direct link between the intoxication and the overserved patron’s injurious act.” Osborne, 730 N.W.2d at 313 (Ross, J., dissenting).
[375]*375We emphasize, however, that consistent with our Kryzer opinion, there must be sufficient evidence that Riley’s intoxication was a proximate cause, not merely a “but for” cause, of his injury. Thus, the dissent here is correct in stating that there must be a “ ‘causal connection between the intoxication and the injury’ that is more than simply an occasion for the injury” (quoting Kryzer, 494 N.W.2d at 38). But we disagree that the intoxication must be the sole cause of injury for liability to attach under the Dram Shop Act.
While it is true that we have not been explicit in our adoption of the “substantial factor” test when examining whether proximate cause exists between intoxication and injury in dram shop cases, we find no support for the contention that in dram shop actions there cannot be two contributing substantial causes of the injury. First, as discussed above, it is a well-settled tort principle that a proximate cause of a given result is that which is a substantial factor in bringing about that result. Peterson, 192 Minn. at 364, 256 N.W. at 903. We find no rationale for departing from this well-developed law or for rejecting the application of tort principles to dram shop actions, which are, in fact, tort actions. Dahl, 265 Minn. at 221, 121 N.W.2d at 324.
Second, a look at our past dram shop cases convinces us that we have, even if only implicitly, applied the general tort definition of proximate cause and rejected the notion that intoxication must be the sole proximate cause of injury in the dram shop context. We note that we have used both the terms “the proximate cause” and “a proximate cause” when describing the necessary causation between intoxication and injury.5 But we have never said or implied that intoxication must be the sole cause of the injury. Moreover, we have concluded that a defendant is liable under the dram shop act when the allegation is that intoxication was only a contributing cause of the injury. For example, in Lefto, we affirmed a grant of summary judgment in favor of plaintiffs when all the plaintiffs alleged was that the illegal sale of alcohol that caused the intoxication was “a contributing cause to the accident” and the resulting injury. Lefto, 581 N.W.2d at 856.
Further, in Kvanli, we concluded that the evidence was sufficient to support a jury finding that the intoxication “was a proximate cause of the events which brought about the injury.” 272 Minn. at 485, 139 N.W.2d at 278. In Kvanli, we explicitly stated that “[t]he jury was justified in concluding that intoxication caused [the] plaintiffs injury.” Id., 139 N.W.2d at 278. In support of this conclusion we added that “[t]here is nothing in the record to support a finding that negligence on the part of plaintiff himself was the sole cause of the accident. Concurring negligence, if any, would not bar recovery.” Id., 139 N.W.2d at 278 (emphasis added). Thus, as articulated in Kvanli our dram shop case law supports our conclusion that the intoxication need not be the sole cause of injury.
Kvanli also leads us to another principle that supports our definition of proximate cause. The Dram Shop Act explicitly provides that comparative negligence principles to apply to dram shop actions. See [376]*376Minn.Stat. § 340A.801, subd. 3 (2006). This comparative negligence provision evidences the legislature’s intent to hold dram shop owners liable for an illegal sale of alcohol even if another party shares responsibility for causing the injury. Although comparative fault is not synonymous with proximate causation, the implication of comparative fault is that there is some other contributing cause of the resulting injury. Minn.Stat. § 604.01, subd. la (2006) (“Legal requirements of causal relation apply both to fault as the basis for liability and to contributory fault.”). The legislature has made clear, and we have recognized, that comparative fault principles apply in our dram shop actions and that there can be more than one party at fault for the injury. See K.R. v. Sanford, 605 N.W.2d 387, 392 (Minn.2000); Fitzer v. Bloom, 253 N.W.2d 395 (Minn.1977). If more than one party can be liable, it must be the case that more than one party may be the “legal” cause of the injury — namely, the proximate cause — because causation is a necessary element for comparative fault.
Today, we reaffirm the well-established tort principle in the dram shop context that intoxication need only be “a substantial factor in bringing about the injury.” Flom v. Flom, 291 N.W.2d 914, 917 (Minn.1980) (emphasis added) (defining proximate cause in the context of a negligence action); see also Kryzer, 494 N.W.2d at 37 (citing Flom while discussing the definition of proximate cause under the Dram Shop Act).
Thus, we conclude that in order to survive summary judgment in this case, appellants were required to set forth sufficient evidence showing that there is a genuine issue of material fact as to whether Riley’s intoxication was a substantial factor in his decision to jump into the Minnesota River in order to escape arrest. Appellants assert that Riley’s intoxication was a substantial factor in bringing about his injury because Riley’s alcohol-impaired judgment caused him to choose to avoid arrest by jumping into the flood-swollen river under the mistaken belief that he could swim safely to shore. Twin Town Bowl asserts that one can only speculate that intoxication was a substantial factor in Riley’s decision, and mere speculation is not enough to survive a summary judgment motion. See Bob Useldinger & Sons, Inc. v. Hangsleben, 505 N.W.2d 323, 328 (Minn.1993).
Black’s Law Dictionary defines intoxication as “[a] diminished ability to act with full mental and physical capabilities because of alcohol or drug consumption.” Black’s Law Dictionary 841 (8th ed.2004) (emphasis added). The Diagnostic and Statistical Manual of Mental Disorders classifies intoxication as a mental disorder that causes “maladaptive behavior or psychological changes,” including “belligerence, mood Lability, cognitive impairment, impaired judgment, [and] impaired social or occupational functioning.” Am. Psychiatric. Ass’n, Diagnostic & Statistical Manual of Mental Disorders 199-200, 196-97 (4th ed., text rev.2000) (hereinafter DSM IV); accord id. at 214-25. Further, we have stated that the effects of intoxication are within common knowledge of lay people, State v. Griese, 565 N.W.2d 419, 425 (Minn.1997), and it is generally known that alcohol impairs both mental and physical capacity.6 Therefore, much like a [377]*377drunk driver’s clouded judgment and impaired physical faculties may substantially cause him to be involved in a motor vehicle accident, we conclude that the known and proven effects of alcohol, in concert with the fact that Riley — while intoxicated'— made a choice to escape arrest by jumping into a river, provide appellants with sufficient evidence to create a genuine issue of material fact as to whether Riley’s intoxication proximately caused Riley to choose to jump into the river under the mistaken belief that he could swim safely to shore.
Our conclusion is supported by our decision in Kvanli, where an intoxicated driver who was involved in a motor vehicle accident continued to drive at a reduced speed and then accelerated when he was approximately 10 feet away from a pedestrian. 272 Minn. at 485, 139 N.W.2d at 278. The driver hit the pedestrian and then drove off. Id., 139 N.W.2d at 278. When concluding that there was sufficient evidence for the jury to find that the driver’s intoxication caused the pedestrian’s injuries, we focused on the driver’s alcohol-impaired mental and physical faculties as a cause of the accident. Id. at 485, 139 N.W.2d at 278. We concluded that based on the facts of the case, “[t]he jury could infer that lack of judgment or perception resulting from intoxication produced by the consumption of the liquor was a proximate cause of the events which brought about the injury.” Id., 139 N.W.2d at 278.
Similarly, in this case, a jury could infer from the evidence that Riley’s impaired judgment from his intoxication was a proximate cause of his fatal jump into the river. Because alcohol causes maladaptive behavior and psychological changes — including belligerence, cognitive impairment, and impaired judgment (DSM IV, supra, 199-200, 214-15) — it is possible that it was Riley’s intoxication that made jumping into the river appear to be a desirable and viable alternative to arrest. The evidence at trial may show that if Riley was sober he may have still wanted to avoid being arrested, but that with unimpaired mental faculties, he might have been more rational and chosen not to evade arrest or at least not to do so by jumping into a flood-swollen river. Conversely, because evidence in the record suggests that Riley may have had a history of evading arrest and that he had previously told friends and family that he thought he could avoid arrest by swimming safely across a river, it may be the case that the intoxication did not substantially cause Riley to jump into the Minnesota River. But while this predisposition may have been a substantial factor, intoxication may also have been a substantial factor, especially in influencing Riley to actually attempt an escape by jumping into the river. In any case, these questions are precisely the kinds of questions that should be answered by a jury.
The dissent asserts that Kvanli does not support our conclusion that the commonly known effects of alcohol and the facts of this case provide sufficient evidence to create a genuine issue of material fact as to whether Riley’s intoxication substantially caused him to jump into the river. But our analysis of proximate cause in Kvanli shows that a person’s intoxication at the time of the injury-causing event has been sufficient to withstand summary judgment when the injury was caused by the actions and choices of the intoxicated party. As discussed above, in Kvanli we stated that based on the fact that the driver was intoxicated when he hit a pedestrian with his vehicle and then sped off, a jury could conclude that the driver’s alcohol-impaired judgment proximately caused the pedestri[378]*378an’s injuries. 272 Minn. at 485, 139 N.W.2d at 278.
Our conclusion is further supported by our holding in Murphy v. Hennen, 264 Minn. 457, 119 N.W.2d 489 (1963). In Murphy, we upheld a jury verdict, after a full trial on the merits, finding a liquor establishment liable under the Dram Shop Act when an intoxicated party was involved in a motor vehicle accident. 264 Minn. 457, 461, 119 N.W.2d 489, 491-92 (1963). In addressing a sufficiency of the evidence claim with respect to proximate cause, we stated that there was “ample evidence from which the jury could find that [the intoxicated party’s] intoxication caused the collision.” Id. at 461, 119 N.W.2d at 492. The evidence we cited to support this conclusion consisted of two things: (1) the allegedly intoxicated party was, in fact, intoxicated, and (2) the nature of the accident. Id., 119 N.W.2d at 491-92. When concluding that the nature of the accident provided sufficient evidence to uphold the verdict we stated that the evidence showed “the collision occurred because [the intoxicated party] drove his automobile upon the wrong side of the highway and into the [injured party’s] car.” Id., 119 N.W.2d at 492. We went on to state that “[t]he inference of intoxication as a cause is compelling when it is remembered that [the intoxicated party] sideswiped another car driving in the same direction as the [injured party’s] car moments before the collision.” Id., 119 N.W.2d at 492. Based on this evidence as to the nature of the accident, as well as evidence of the driver’s intoxication, we held that there was sufficient evidence to support the jury finding that the driver’s intoxication caused that accident. Id., 119 N.W.2d at 491-92.
In this case, we are not called upon to determine whether the evidence is sufficient to support the higher preponderance of the evidence standard that was needed to support the jury verdict in Murphy. Rather, for purposes of a summary judgment motion, there only needs to be a genuine issue of material fact for the case to go to trial. Anderson, 693 N.W.2d at 186. Thus, our reasoning and conclusions in Murphy — that under a higher standard there was sufficient evidence to uphold a jury verdict-support our conclusion that there is a genuine issue of fact concerning whether Riley’s intoxication was a proximate cause of his radical and unwise choice to escape arrest by jumping into the river.
That this case involves unconventional facts that may, at first glance, appear more complicated than the more common drunk driver or bar fight scenarios does not remove this case from the realm of a typical dram shop action. The question here, as in any other dram shop case, remains whether the intoxication was a proximate cause of the injury, that is, whether Riley’s intoxication substantially caused his decision to jump into the river. We conclude that a genuine issue exists as to this fact. Nevertheless, we emphasize that our holding is only that for purposes of summary judgment there exists a genuine issue of material fact as to whether Riley’s intoxication was a proximate cause of his decision to jump into a river to escape arrest. As such, we hold that the district court erred when it granted Twin Town Bowl’s motion for summary judgment.
We note that the dissent takes issue with our proximate cause analysis and our conclusion regarding expert testimony. Because we hold that, for purposes of summary judgment, the known effects of intoxication and the facts of this case are sufficient to create a genuine issue of material fact as to proximate cause, we have no need to determine the weight, if any, that is to be given to the expert report or its [379]*379admissibility at trial. Nevertheless, if we give the expert report the weight it is given by the dissent, we conclude that this report only strengthens our conclusion that a genuine issue of material fact exists as to whether intoxication was a proximate cause of Riley’s injury. The report includes such findings as (1) “[Riley’s] judgment was severely impaired and his ability to make wise decisions very much compromised when he became inebriated,” (2) “he experienced blackouts when inebriated,” and (3) “[he] took risks and did things when inebriated that he would not do when sober, and that many of those behaviors were in poor judgment and without concern for consequences.” (Emphasis added.) A careful reading of the report thus reveals that the focus of the report is how alcohol affected Riley.7
Even if we were to accept the dissent’s interpretation of the expert report — that Riley had a predisposition to evade the police — which we conclude is incorrect, this does not preclude a conclusion that there is sufficient evidence to survive a motion for summary judgment. First, the dissent states that the expert identifies two causes of Riley’s death — a predisposition to evade police and intoxication. The dissent asserts that there is no basis in the record to distinguish between these potential causes, and therefore, the appellants did not satisfy their burden to withstand summary judgment. But as discussed above, the causation requirement in a dram shop action is that the intoxication was a proximate cause of the injury, or in other words, a substantial factor. It need not be the sole proximate cause. See Kryzer, 494 N.W.2d at 36. Thus, even if Riley had a predisposition to evade arrest, this predisposition would not preclude a finding that the intoxication was still a substantial factor in Riley choosing to evade arrest on the night of his death. Further, even if Riley would have tried to escape from the police when sober, this does not preclude a finding that Riley’s chosen method of escape-jumping off a bridge into a flood-swollen river — was proximately caused by his intoxication.
Second, the dissent argues that appellants have provided no basis to distinguish [380]*380between the two potential causes supported by the expert report — intoxication and Riley’s predisposition to evade police. But even if the expert report did provide evidence of some sort of general predisposition to evade police, the jury does not have to choose between Riley’s predisposition, his intoxication, or a combination of the two. All that is required for liability under the Dram Shop Act is that the intoxication was a substantial factor that caused the injury. While the dissent correctly asserts that the district court must grant summary judgment if the evidence supports “two or more inconsistent inferences so that one inference does not reasonably preponderate over the others,” (E.H. Renner & Sons, Inc. v. Primus, 295 Minn. 240, 243, 203 N.W.2d 832, 835 (1973)), there is nothing inconsistent about a finding that Riley’s predisposition to escape arrest and his intoxication on the night of his death were both substantial factors that caused him to jump into the Minnesota River to escape the police. Therefore, the jury could find that Riley’s predisposition, his intoxication, or both factors acting in concert proximately caused his injury.8
Finally, the dissent asserts that the record provides no basis to determine whether Riley’s intoxication proximately caused his injury because appellants offered no admissible expert testimony to “sort out” the causation question. We first emphasize that in order to survive a summary judgment motion, all appellants need to show is that “reasonable persons might draw different conclusions from the evidence presented.” DLH Inc. v. Russ, 566 N.W.2d 60, 69 (Minn.1997). Thus, at this stage of the proceedings, appellants need not meet the dissent’s heightened burden of sorting out the causation element. Second, as stated above, we have said that the effects of alcohol are within the common knowledge of lay people so expert testimony may not be necessary to prove appellants’ case. Griese, 565 N.W.2d at 425. Moreover, were expert testimony necessary, the expert psychological report, which was considered by the district court as part of the record and cited at length by the dissent as the basis for its argument, provides direct evidence on the question of whether Riley’s intoxication proximately caused his injury.
After an analysis of Riley’s history, personality, and drug abuse, the expert concluded his report with the opinion that Riley’s jump was “made while inebriated and possibly in a blackout state with the grandiose belief that he had the physical capacity to overcome the cold swift currents of the Minnesota River and escape [381]*381arrest by swimming to the other shore.” The expert went on to state that in his opinion, Riley “would not have thought or attempted such an escape were he sober and, in fact, he would very likely not have acted in the ways he did, during the fatal evening.” The expert concluded with the following statement: “f am of the opinion that [Riley’s] alcohol inebriation played a substantial part in bringing about his decision to jump into the river, and that he almost certainly would not have done so if sober.” (Emphasis added.) Thus, if expert testimony were needed to determine whether Riley’s intoxication was a proximate cause of his injury, the expert report in this case provides sufficient evidence to create a genuine issue of material fact as to the proximate cause issue.
We therefore conclude that, for purposes of summary judgment, the evidence here is substantial enough so that “reasonable persons might draw different conclusions” about whether Riley’s intoxication caused him to make the fatal choice to jump into the river to avoid arrest. DLH, 566 N.W.2d at 69. Accordingly, we hold that the district court erred when it granted Twin Town Bowl’s motion for summary judgment.
Reversed and remanded.
DIETZEN, J. not having been a member of this court at the time of the argument and submission, took no part in the consideration or decision of this case.