BISTLINE, Justice.
Plaintiff Carolyn Sliman suffered complete loss of sight in her left eye as a result of an aluminum twist-off cap having forcibly ejected from a 7-Up soft drink bottle. Plaintiffs sued the defendant-appellant Aluminum Company of America (ALCOA), Seven-Up U.S.A. Inc., Noel Canning (Seven-Up U.S.A.’s bottler), and various other defendants. After trial a jury found plaintiff Carolyn Sliman 25 percent at fault, defendant Seven-Up U.S.A. 45 percent at fault, ALCOA 30 percent at fault, and apportioned no fault to the rest of the defendants. The jury found the plaintiffs’ damages to amount to $100,000 and further assessed punitive damages against defendant Seven-Up U.S.A. of $200,000 and against ALCOA $100,000. ALCOA appeals from that judgment. We affirm.
I.BACKGROUND
On October 9, 1979 Carolyn Sliman prepared to open a two-liter plastic bottle of 7-Up. The bottle was capped with an aluminum twist-off closure with an aluminum band around its bottom known as a “pilfer-proof band.” Neither the cap nor the bottle bore any warnings concerning the cap blowing off, or any instructions of how to remove the cap. Believing that the pilfer-proof band must be removed before removing the twist-off cap itself, she pulled at the band with a pair of pliers. At this point, the cap exploded from the bottle and struck her in the left eye. The impact caused permanent injury including the complete loss of sight in her eye.
Plaintiffs recount the following facts developed at trial:
1. ALCOA designed and presented to the industry the system for closure of soft drink bottles with aluminum caps.
2. ALCOA designed, patented, and marketed the closure involved in the instant accident, known as a “top side pilfer-proof closure.”
3. From the beginning of its design, manufacture, and marketing of the caps, [279]*279ALCOA recognized a potential for forceful blow-off.
4. ALCOA increased the manufacture and marketing of these caps and of machines to apply the caps from 1967 to the date of the accident in 1979 despite receiving notification (generally by claims or lawsuits) of 229 injuries to consumers due to blow-offs of these caps. ALCOA was aware that the rate of injuries to consumers increased in proportion to the number of closures sold. ALCOA further was aware that the forceful blow-off of closures could occur for a variety of reasons, including misapplication of its caps by the bottlers, mishandling by consumers, and so-called “tail-end blow-offs” which could occur after usual and customary handling by consumers. ALCOA knew that premature blow-offs could never be entirely eliminated.
5. During the period from 1967-79, ALCOA made only one change in its specifications for threads on the manufactured bottles (called the “bottle finish”). This change did not reduce incidents of blow-offs or injuries to consumers.
6. From 1967 to 1979, ALCOA took no action to warn consumers or to recommend or require that soft drink franchisers or bottlers who purchased its product do so. Nor had ALCOA effectively modified its product or restricted or terminated its marketing.
7. As early as 1973 ALCOA’s senior packaging engineer was aware of a proposed bottle finish which might prevent premature blow-off by use of vertical slots to safely vent carbon dioxide gas pressure before the cap was released. Nevertheless, ALCOA made no effort prior to the date of the accident to implement such a change in the bottle finish, even though plastic bottles of the type involved in this case were amenable to the new bottle finish and had been in use for at least two years prior to the accident.
ALCOA presents an additional set of facts:
1. At the time the cap left the possession of ALCOA, it was a cylindrical shell without threads and without defect.
2. The bottler applies the unthreaded shell to the bottle with a capping machine that creates a seal and a fit.
3. When the shell is properly applied, in the manner recommended by Seven-Up U.S.A. and ALCOA, the product can be opened safely.
4. In this case, there was no defect in the shell or other components of the soft drink package until Carolyn Sliman applied pliers to the cap.
5. In its agreement with its bottling companies, Seven-Up U.S.A. has strict and absolute control over all package shapes, components, labels, and graphics.
6. ALCOA never had possession or control of the beverage, bottle, or final soft drink package involved in the instant accident. Nor did ALCOA have any right or opportunity to direct the assembly or manufacturing process.
7. Prior to the instant accident, ALCOA advised Seven-Up U.S.A. and its bottling company that personal injury could result if a closure was improperly applied.
On appeal, ALCOA raises three issues which we now address.
II.
ALCOA initially contends that the case should not have been submitted to the jury, because ALCOA had no duty to warn Carolyn Sliman. Writing for a unanimous Court, Justice Bakes comprehensively discussed the standard of review appropriate to this issue:
Our task on appeal from a jury verdict is to determine if there was substantial, competent evidence to support the verdict. ... The substantial evidence test also applies to an appeal from a denial of a motion for judgment n.o.v. ... In reviewing the evidence, we must view it in a light most favorable to the respondent. ... Only when the findings of the trier of fact are clearly erroneous will the verdict be set aside. ... A finding of [280]*280the trier of fact will be set aside only if there is no substantial evidence to support it.
Spanbauer v. J.R. Simplot Co., 107 Idaho 42, 44, 685 P.2d 271, 273 (1984) (citations omitted).
In the context of both negligence and strict liability, a supplier in some situations has the duty to warn of risks from its products. In an action based on negligence, this Court has held:
As a general rule, if any supplier, including the distributor, of a product knows or has reason to know that the product is likely to be unsafe when used for the purpose for which it is supplied, and has no reason to believe that the persons for whose use the product was supplied will realize its unsafe condition, then the supplier has a duty to exercise reasonable care adequately to warn them of the unsafe condition or of the facts which make the product likely to be dangerous.
Robinson v. Williamsen Idaho Equipment Co., 94 Idaho 819, 825, 498 P.2d 1292, 1298 (1973) (citing Restatement (Second) of Torts §§ 388, 497) (footnote omitted).
This duty exists only where the manufacturer “knows or has reason to know the unsafe condition of the product when used for the purpose for which it was supplied.” Id. at 826, 498 P.2d at 1299. The manufacturer is not absolved of its duty to warn if “the product might prove unsafe only to a few, foreseeable users.” Id. “Even though a product is not inherently defective in design or manufacture, the supplier’s duty to warn extends to risks of danger which arise during the known or foreseeable use of the product.” Id.
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BISTLINE, Justice.
Plaintiff Carolyn Sliman suffered complete loss of sight in her left eye as a result of an aluminum twist-off cap having forcibly ejected from a 7-Up soft drink bottle. Plaintiffs sued the defendant-appellant Aluminum Company of America (ALCOA), Seven-Up U.S.A. Inc., Noel Canning (Seven-Up U.S.A.’s bottler), and various other defendants. After trial a jury found plaintiff Carolyn Sliman 25 percent at fault, defendant Seven-Up U.S.A. 45 percent at fault, ALCOA 30 percent at fault, and apportioned no fault to the rest of the defendants. The jury found the plaintiffs’ damages to amount to $100,000 and further assessed punitive damages against defendant Seven-Up U.S.A. of $200,000 and against ALCOA $100,000. ALCOA appeals from that judgment. We affirm.
I.BACKGROUND
On October 9, 1979 Carolyn Sliman prepared to open a two-liter plastic bottle of 7-Up. The bottle was capped with an aluminum twist-off closure with an aluminum band around its bottom known as a “pilfer-proof band.” Neither the cap nor the bottle bore any warnings concerning the cap blowing off, or any instructions of how to remove the cap. Believing that the pilfer-proof band must be removed before removing the twist-off cap itself, she pulled at the band with a pair of pliers. At this point, the cap exploded from the bottle and struck her in the left eye. The impact caused permanent injury including the complete loss of sight in her eye.
Plaintiffs recount the following facts developed at trial:
1. ALCOA designed and presented to the industry the system for closure of soft drink bottles with aluminum caps.
2. ALCOA designed, patented, and marketed the closure involved in the instant accident, known as a “top side pilfer-proof closure.”
3. From the beginning of its design, manufacture, and marketing of the caps, [279]*279ALCOA recognized a potential for forceful blow-off.
4. ALCOA increased the manufacture and marketing of these caps and of machines to apply the caps from 1967 to the date of the accident in 1979 despite receiving notification (generally by claims or lawsuits) of 229 injuries to consumers due to blow-offs of these caps. ALCOA was aware that the rate of injuries to consumers increased in proportion to the number of closures sold. ALCOA further was aware that the forceful blow-off of closures could occur for a variety of reasons, including misapplication of its caps by the bottlers, mishandling by consumers, and so-called “tail-end blow-offs” which could occur after usual and customary handling by consumers. ALCOA knew that premature blow-offs could never be entirely eliminated.
5. During the period from 1967-79, ALCOA made only one change in its specifications for threads on the manufactured bottles (called the “bottle finish”). This change did not reduce incidents of blow-offs or injuries to consumers.
6. From 1967 to 1979, ALCOA took no action to warn consumers or to recommend or require that soft drink franchisers or bottlers who purchased its product do so. Nor had ALCOA effectively modified its product or restricted or terminated its marketing.
7. As early as 1973 ALCOA’s senior packaging engineer was aware of a proposed bottle finish which might prevent premature blow-off by use of vertical slots to safely vent carbon dioxide gas pressure before the cap was released. Nevertheless, ALCOA made no effort prior to the date of the accident to implement such a change in the bottle finish, even though plastic bottles of the type involved in this case were amenable to the new bottle finish and had been in use for at least two years prior to the accident.
ALCOA presents an additional set of facts:
1. At the time the cap left the possession of ALCOA, it was a cylindrical shell without threads and without defect.
2. The bottler applies the unthreaded shell to the bottle with a capping machine that creates a seal and a fit.
3. When the shell is properly applied, in the manner recommended by Seven-Up U.S.A. and ALCOA, the product can be opened safely.
4. In this case, there was no defect in the shell or other components of the soft drink package until Carolyn Sliman applied pliers to the cap.
5. In its agreement with its bottling companies, Seven-Up U.S.A. has strict and absolute control over all package shapes, components, labels, and graphics.
6. ALCOA never had possession or control of the beverage, bottle, or final soft drink package involved in the instant accident. Nor did ALCOA have any right or opportunity to direct the assembly or manufacturing process.
7. Prior to the instant accident, ALCOA advised Seven-Up U.S.A. and its bottling company that personal injury could result if a closure was improperly applied.
On appeal, ALCOA raises three issues which we now address.
II.
ALCOA initially contends that the case should not have been submitted to the jury, because ALCOA had no duty to warn Carolyn Sliman. Writing for a unanimous Court, Justice Bakes comprehensively discussed the standard of review appropriate to this issue:
Our task on appeal from a jury verdict is to determine if there was substantial, competent evidence to support the verdict. ... The substantial evidence test also applies to an appeal from a denial of a motion for judgment n.o.v. ... In reviewing the evidence, we must view it in a light most favorable to the respondent. ... Only when the findings of the trier of fact are clearly erroneous will the verdict be set aside. ... A finding of [280]*280the trier of fact will be set aside only if there is no substantial evidence to support it.
Spanbauer v. J.R. Simplot Co., 107 Idaho 42, 44, 685 P.2d 271, 273 (1984) (citations omitted).
In the context of both negligence and strict liability, a supplier in some situations has the duty to warn of risks from its products. In an action based on negligence, this Court has held:
As a general rule, if any supplier, including the distributor, of a product knows or has reason to know that the product is likely to be unsafe when used for the purpose for which it is supplied, and has no reason to believe that the persons for whose use the product was supplied will realize its unsafe condition, then the supplier has a duty to exercise reasonable care adequately to warn them of the unsafe condition or of the facts which make the product likely to be dangerous.
Robinson v. Williamsen Idaho Equipment Co., 94 Idaho 819, 825, 498 P.2d 1292, 1298 (1973) (citing Restatement (Second) of Torts §§ 388, 497) (footnote omitted).
This duty exists only where the manufacturer “knows or has reason to know the unsafe condition of the product when used for the purpose for which it was supplied.” Id. at 826, 498 P.2d at 1299. The manufacturer is not absolved of its duty to warn if “the product might prove unsafe only to a few, foreseeable users.” Id. “Even though a product is not inherently defective in design or manufacture, the supplier’s duty to warn extends to risks of danger which arise during the known or foreseeable use of the product.” Id. at 826-27, 498 P.2d at 1299-1300.
In the context of strict liability, “where the defendant has ‘reason to anticipate that danger may result from a particular use’ of his product and he fails to give adequate warnings of such a danger, ‘a product sold without such warning is in a defective condition.’ ” Rindlisbaker v. Wilson, 95 Idaho 752, 759, 519 P.2d 421, 428 (1974) (quoting Restatement (Second) of Torts § 402A comment h). As is apparent, there generally is little difference in the requirements and analysis of the duty to warn under either a negligence or strict liability theory, both of which the plaintiffs advanced. See Feldman v. Lederle Laboratories, 97 N.J. 429, 479 A.2d 374, 386 (1984) and cases cited therein; see generally, J. Wade, On the Nature of Strict Tort Liability for Products, 44 Miss.L.J. 825, 842 (1973).1
ALCOA contends that it had no duty to warn the ultimate purchaser of its product of the danger of the cap’s blow-off. ALCOA bases its contention on two grounds. First, as the manufacturer of a component part in the ultimate product, ALCOA had no effective means to communicate such a warning directly to the ultimate purchaser. ALCOA did issue certain warnings concerning misapplication to the manufacturer, Seven-Up U.S.A., and to the bottler. Accordingly, argues ALCOA, the duty to warn rested exclusively with Seven-Up U.S.A., which controlled the labeling and which chose not to warn of blow-offs. Second, ALCOA had no duty to warn of risks which were not reasonably foreseeable. In ALCOA’s view, Carolyn Sliman’s manner of removing the cap was not reasonably foreseeable. We will address each of these grounds in turn.
The question of when a manufacturer of a component part has the duty to warn of risks associated with it is one of first impression before this Court. However, we take guidance from the recent decision of the Supreme Court of Texas, which addressed a similar question involving the same defendant in Alm v. Aluminum Company of America, 717 S.W.2d 588 (Tex.1986). Generally speaking, in some circumstances a supplier positioned on the commercial chain remote from the [281]*281ultimate consumer may fulfill its duty to warn by adequately warning an intermediary. The Alm court noted two such circumstances, the first being “when a drug manufacturer properly warns a prescribing physician of the dangerous propensities of its product____ The doctor stands as a learned intermediary between the manufacturer and the ultimate consumer. Generally, only the doctor could understand the propensities and dangers involved in the use of a given drug.” Id., at 591-92. The second circumstance involves “a bulk supplier, one who sells a product to another manufacturer or distributor who in turn packages and sells the product to the public____” Id. at 592. Because of its remote position and its lack of control over the labeling and marketing of the ultimate product, a component part manufacturer also should be able to issue warnings through an intermediary. Id.
However, as succinctly observed the Alm court, in every circumstance the reliance on the intermediary must be reasonable. Id.; see also Restatement (Second) of Torts § 388 (“One who supplies directly or through a third person” must “exercise reasonable care to inform [the ultimate user] of [a chattel’s] dangerous condition or of the facts which make it likely to be dangerous.”), adopted in Robinson, supra, 94 Idaho at 825, n. 14, 498 P.2d at 1298 n. 14.2 Manufacturers, including those of component parts, may not “rely unquestioningly on others to sound hue and cry concerning a danger in its product.” Borel v. Fibreboard Paper Products Corp., 493 F.2d 1076, 1090 (5th Cir.1973) cert. denied 419 U.S. 869, 95 S.Ct. 127, 42 L.Ed.2d 107 [282]*282(1974) (emphasis added). As the Restatement notes:
Giving to the third person through whom the chattel is supplied all the information necessary to its safe use is not in all cases sufficient to relieve the supplier from liability. It is merely a means by which this information is to be conveyed to those who are to use the chattel. The question remains whether this method gives a reasonable assurance that the information will reach those whose safety depends upon their having it.
Restatement (Second) of Torts § 388, comment n (emphasis added); see also Borel, supra, 493 F.2d at 1091 (“The seller's warning must be reasonably calculated to reach [the ultimate consumer] and the presence of an intermediate party will not by itself relieve the seller of this duty.”).
As the United States Court of Appeals for the Eighth Circuit observed:
When a manufacturer can reasonably foresee that the warnings it gives to a purchaser of its product will not be adequately conveyed to probable users of the product, then its duty to warn may extend beyond the purchaser to those persons foreseeably endangered by the product’s use. Warnings given to the purchaser do not necessarily insulate the manufacturer from liability to injured users of the product. Restatement (Second) of Torts § 388 & Comment n (1965); L. Frumer & M. Friedman, 1 Products Liability § 803[3] (1980).
Hopkins v. Chip-in-Saw, Inc., 630 F.2d 616, 619 (8th Cir.1980); accord, Seibel v. Symons Corp., 221 N.W.2d 50, 55 (N.D.1974).
Naturally, the factual question of what is “reasonable assurance” is for the jury to determine.
In addition, the component manufacturer must give an adequate warning. Alm, supra, at 592; see also, e.g., Woodill v. Parke Davis & Co., 79 Ill.2d 26, 36 Ill.Dec. 304, 402 N.E.2d 194, 199 (Ill.1980). As with the reasonableness of assurance that an intermediary will convey a warning, the adequacy of the warning given the intermediary is for the jury to determine. Bryant v. Technical Research Co., 654 F.2d 1337, 1345 (9th Cir.1981) (interpreting Idaho law); Alm, supra, at 592; Oak Grove Investors v. Bell & Gossett Co., 99 Nev. 616, 668 P.2d 1075, 1080 (1983).
Regarding both of the above factual questions, the record clearly contains substantial competent evidence to support the verdict. Substantial competent evidence was introduced which indicated that ALCOA not only knew that Seven-Up U.S.A. and other intermediaries had failed to include warnings to consumers of the dangers of blow-offs, but also that ALCOA had not suggested that the intermediaries include such warnings. Based on this evidence, the jury readily could have found that ALCOA lacked reasonable assurance that the warning would reach the consumer. Accord, Hopkins, supra; Seibel, supra.3
[283]*283Substantial competent evidence also was introduced that ALCOA knew that consumers’ use of tools on the caps could and had resulted in blow-offs, but that ALCOA’s warnings to intermediaries omitted this particular risk. Based on this evidence, the jury could have found that ALCOA had failed to give adequate warnings. Accord, Alm, supra, at 594.
ALCOA alternatively asserts that the manner in which Carolyn Sliman attempted to open the soft drink — characterized by ALCOA as a “misuse” of the product — was so unforeseeable that ALCOA had no duty to warn of the risks involved. As is well established, a supplier has no duty to warn where the use made of a product was not known or reasonably foreseeable to the manufacturer or seller. Robinson, supra, 94 Idaho at 826-27, 498 P.2d at 1299-1300; see generally 1A L. Frumer and M. Friedman, Products Liability § 8.03 (hereinafter Products Liability ). The factual question of foreseeability is for the jury to determine. 1A Products Liability, supra, § 8.03[1] (“This being an area in which judges find it difficult to agree, the issue should ordinarily be left to the common sense of the jury.”) (see cases cited therein). In this case, substantial competent evidence was introduced that ALCOA not only foresaw but had actual knowledge of consumers’ using tools to remove caps. The jury readily could have found that ALCOA could have foreseen Carolyn Sliman’s actions.4
[284]*284In sum, there being substantial competent evidence to support the jury’s findings and the verdict, they will not be set aside. Spanbauer, supra, 107 Idaho at 44, 685 P.2d at 273.
III.
ALCOA next asserts that the district court erred in admitting into evidence a list of 229 claims involving “blow-off” accidents of which ALCOA was familiar prior to the instant accident. Chief Justice Donaldson recently set out the appropriate standard of review as follows:
Decisions regarding the inclusion or exclusion of evidence are within the sound discretion of the trial court and will not be upset on appeal absent a showing that the trial court abused its discretion. See, e.g., Rosenberg v. Toetly, 94 Idaho 413, 489 P.2d 446 (1971). Evidence of other accidents may be admissible to prove the existence of a particular physical condition or defect, the risk created by a defendant’s conduct, that the defect cause the alleged injury, or that a defendant had notice of the danger. McCormick on Evidence, § 200 (3rd Ed. 1984). Evidence of other accidents may be excluded if the trial court decides that the evidence would unfairly prejudice the opposing party, that the other accidents are not substantially similar to the subject case, or that admission will raise collateral issues or confuse the jurors. Id.
Fish Breeders of Idaho, Inc. v. Rangen, Inc., 108 Idaho 379, 382, 700 P.2d 1, 4 (1985) (emphasis added).
The evidence clearly was relevant to whether or not the “defendant had notice of the danger,” id., which in turn was material to whether ALCOA had sufficient knowledge of the risk to require a warning, e.g., Gillham v. Admiral Corp., 523 F.2d 102, 109 (6th Cir.1975); see generally, 1A Products Liability, supra, § 12.01[2] (“[E]vidence of prior accidents involving the same product under similar circumstances is admissible to show notice to the defendant of the danger.”), and to whether punitive damages were warranted. See Cheney v. Palos Verdes Investment Corp., 104 Idaho 897, 905, 665 P.2d 661, 669 (1983) (“An award of punitive damages will be sustained on appeal only when it is shown that the defendant acted in a manner that was ‘an extreme deviation from reasonable standards of conduct, and that the act was performed by the defendant with an understanding of or disregard for its likely consequences.’ Hatfield v. Max Rouse & Sons Northwest, supra, 100 Idaho [840] at 851, 606 P.2d [944] at 955. See Linscott [v. Ranier Nat. Life Ins. Co., 100 Idaho 854, 606 P.2d 958], supra. ”) ALCOA’s principle contention is that the prior accidents were so different from the instant one that the district court abused its discretion in admitting the evidence of prior accidents.5 We find no merit to this contention.
As indicated in Fish Breeders, supra, the prior accidents only need be “substantially similar” to the instant one, not identical in every detail. 108 Idaho at 382, 700 P.2d at 4; see also Cogswell v. C.C. Anderson Stores Co., 68 Idaho 205, 215-16, 192 P.2d 383, 389 (1948); see generally 1A Products Liability, supra, § 12.01[2]. The listed prior accidents all involved the forcible ejection of 28 millimeter roll-on aluminum caps, as in the instant accident. Most of the accidents involved injuries to the eyes, as in the instant case. The precise causes of the blow-offs varied; however, in the context of the plaintiffs’ allegations of failure to warn, this variation is of little consequence. Regardless of the cause of the blow-offs, the fact remains that they did occur in the prior accidents just as in the instant accident. The warnings and instructions necessitated by knowledge of this danger would be the same. In short, we cannot say that the district court abused its discretion in admitting the evidence of prior accidents. Fish Breeders, supra, 108 Idaho at 382, 700 P.2d at 4.
[285]*285IV.
Finally, ALCOA argues that the district court erred in submitting the issue of punitive damages to the jury. This Court recently set out the appropriate standard of review as follows:
Punitive damages are “not favored in the law and therefore should be awarded only in the most unusual and compelling circumstances.” Cheney v. Palos Verdes Investment Corp., 104 Idaho 897, 904-05, 665 P.2d 661, 668-69 (1983). The policy behind such damages is deterrence rather than punishment. Id. at 905, 665 P.2d at 669. VAn award of punitive damages will be sustained on appeal only when it is shown that the defendant acted in a manner that was ‘an extreme deviation from reasonable standards of conduct, and that the act was performed by the defendant with an understanding of or disregard for its likely consequences.’ ” Id. (Citation omitted.) “The justification for punitive damages must be that the defendant acted with an extremely harmful state of mind, whether that state be termed ‘malice, oppression, fraud, or gross negligence.’ ” Id., quoting Morrison v. Quality Produce, Inc., 92 Idaho 448, 450, 444 P.2d 409, 411 (1968).
The decision of whether to submit the question of punitive damages to the trier of fact rests within the discretion of the trial court. [Citations omitted.]
Soria v. Sierra Pacific Airlines, Inc., 111 Idaho 594, 726 P.2d 706, 722 (Sup.Ct.1986) (emphasis added).
In part, ALCOA bases its argument on the premise that the admission of the evidence indicating ALCOA’s knowledge of prior accidents was error. However, as just explained, we find no error in admitting that evidence.
Neither do we find error in the admission of the following testimony of plaintiffs’ expert witness George Greene:
Q. (By Mr. Nelson) ... Do you have an opinion as to whether the conduct of Alcoa and 7-Up U.S.A. was an extreme deviation from customary and usual action taken by manufacturers of consumer products?
A. (By Mr. Green) I do.
____[Objections by counsel omitted.]
Q. What is your opinion in that regard?
A. It’s my opinion that the failure to correct this problem, or to warn, at least warn the public about it, is an extreme deviation from the customary practice in the industry.
Tr., pp. 108-10.
ALCOA’s objection is based on the archaic notion that experts may not offer opinions on matters of ultimate fact. This is not the law of Idaho. In Idaho, experts may testify to ultimate issues or facts so long as their testimony assists the trier of fact. See Davis v. Nelson-Deppe, Inc., 91 Idaho 463, 469, 424 P.2d 733, 739 (1967); see generally, Comments to the Idaho Rules of Evidence (1985), comment to Rule 704, p. 3.6 The determination of what will be of assistance to the trier of fact lies within the broad discretion of the trial court. Brown v. Jerry’s Welding and Construction Co., 104 Idaho 893, 897, 665 P.2d 657, 661 (1983). The record affords evidence that Mr. Greene was a qualified safety engineer and was familiar with customary practices in the consumer products industry.7 His testimony as to ALCOA’s “extreme deviation” from these customary practices was relevant to the issue of punitive damages. Soria, supra, 726 P.2d at 722. Mr. Greene’s learned opinion arguably assisted the less knowledgeable triers of fact in [286]*286determining whether ALCOA acted in extreme deviation from reasonable standards of conduct. Accordingly, the district court did not abuse its discretion in permitting this testimony.
With this evidence of ALCOA’s “extreme deviation,” of ALCOA’s long-standing knowledge of the prior accidents, and of ALCOA’s failure to insure that consumers were warned of the risk of which it was aware for so long, the record supports the jury’s finding that ALCOA “show[ed] a reckless disregard for plaintiff’s safety and an extreme deviation from standards of reasonable conduct.” R., Vol. 5, p. 358 (special verdict).8 The district court did not abuse its discretion in submitting the issue of punitive damages to the jury. Soria, supra, 726 P.2d at 722; cf., Gillham, supra, 523 F.2d at 108-09.
V.
The decision of the district court is affirmed. Costs are awarded to respondents, without an award of attorney’s fees.
DONALDSON, C.J., and WALTERS, J. (pro tem) concur.