OPINION
Respondent Mark Rusciano brought suit against appellant State Farm Mutual Automobile Insurance Company for underin-sured motorist benefits. Appellant argued that respondent’s underlying negligence claim was barred by his primary assumption of risk, or by his comparative fault. The trial court refused to submit the question of primary assumption of risk to the jury. Additionally, the court excluded certain testimony concerning a past act of respondent. The jury found the tortfeasor 80 percent negligent and respondent 20 percent negligent. State Farm appeals the denial of its new trial motion. We affirm on the merits, but remand for determination of prejudgment interest.
FACTS
Respondent Mark Rusciano was struck by an automobile on March 4, 1983, in an alley where a group of teenagers was gathered. Respondent was entitled to underin-sured motorist benefits under his parents’ State Farm auto policy. According to trial testimony of four witnesses at the scene of the accident, respondent voluntarily stood in front of the oncoming car to see whether the car would stop before respondent jumped out of the way. The driver testified that when he realized he might come in contact with respondent he did not swerve because he might have hit other persons in the alley, nor did he hit the brakes because he “never thought [respondent] was going to jump on the car.” One witness at the scene testified he heard a “definite acceler *273 ation sound in the motor” prior to impact. Two other witnesses, one a pedestrian and the other a passenger in the automobile, testified that the driver sped up after making the turn into the alley. One of these witnesses gave a statement prior to trial that the driver “slowed down and then when Mark was out in front of the car he speeded up a little bit.”
ISSUES
1. Did the trial court err in refusing to submit to the jury the question of respondent’s primary assumption of risk?
2. Did the trial court err in excluding certain evidence regarding a past act of respondent?
ANALYSIS
I.
Primary assumption of risk applies “only where the parties have voluntarily entered a relationship in which plaintiff assumes well-known, incidental risks.”
Wagner v. Thomas J. Obert Enterprises,
Secondary assumption of the risk on the other hand, is “an affirmative defense to an established breach of duty which may only be raised when the plaintiff has voluntarily chosen to encounter a known and appreciated danger created by the negligence of the defendant.”
Wagner,
Application of the primary assumption of risk doctrine is uncommon.
Swagger v. City of Crystal,
It is within the trial court’s discretion to decide whether or not to instruct the jury on assumption of risk.
Kantorowicz v. VFW Post, No. 230,
The instruction on primary assumption of risk may be omitted where evidence shows the claimant assumed some risk and the other party’s conduct enlarged that inherent risk.
Cf. Rieger v. Zackoski,
The evidence here supports a finding that respondent assumed an inherent risk by walking into the path of an oncoming vehicle. It is not evident that respondent completely assumed enlargement of that risk through the driver’s improper conduct. The evidence shows the driver knew of respondent’s position but failed to brake his vehicle. It is well settled that a driver of a motor vehicle is under a continuous duty to exercise reasonable care by maintaining a proper lookout and to keep his vehicle under reasonable control. See 4 Minnesota Practice, CIV.JIG, 301 (1986).
Appellant contends the trial court is obligated to submit the question of whether respondent’s action constituted primary assumption of risk. Appellant cites Wagner in support of its argument. In Wagner, where the defendant was maintaining an inherently dangerous activity, the trial court submitted both primary and second *274 ary assumption of risk to the jury. Id. at 226-27. The supreme court permitted that exercise of discretion where there was evidence permitting the jury to find that the plaintiffs injury was attributable to the inherent risk assumed in activity at a roller skating rink. Id.
Respondent cannot be barred from recovery for his injuries where the evidence does not support a theory of complete assumption of risk. We conclude it was within the trial court’s discretion to determine the ease was inappropriate for instruction on primary assumption of risk.
II.
Appellant further contends the trial court erred, after appellant produced testimony of a witness who claimed he never saw respondent “play chicken” with a car prior to the night of the accident, by excluding testimony from two other witnesses who claim they saw respondent “play chicken” with a vehicle on prior occasions. The trial court’s exclusion of respondent’s past acts of playing chicken did not unfairly prejudice appellant, nor was it reversible error.
The trial court has broad discretion in making evidentiary rulings.
Jenson v. Touche Ross & Co.,
In addition, while earlier conduct evidence may have been allowed to rebut respondent’s proof to the contrary, this rule does not grant appellant the prerogative to rebut his own evidence.
See Albertson v. Chicago, M.St.P. & P.R. Co.,
Finally, the record indicates that the trial court intended to award respondent prejudgment interest. However, it appears the court by oversight neglected this topic in its order for judgment. We remand solely for the trial court’s calculation of the proper amount of prejudgment interest.
DECISION
The trial court did not err in refusing to submit an instruction on primary assumption of risk. Nor was it reversible error to exclude testimony concerning a past act of respondent. We remand only on the issue of prejudgment interest.
Affirmed and remanded.
