What is the impact of character evidence on the causation of a motor vehicle accident?

Dupuis argues that the trial court erred by admitting character evidence on collateral matters. We disagree, as each item of evidence that Dupuis complains of was relevant either to his credibility or to the conduct of Alaska Shores. Since Dupuis took the stand, and his testimony was critical to causation, his credibility was particularly important. Contrary to what he contends, none of the "character" evidence was considered for the purpose of showing that Dupuis acted in any respect material to this action in conformity with prior bad acts. Cf. Jones v. Southern Pacific R.R., 962 F.2d 447 (5th Cir.1992) (evidence of prior tickets for speeding and improper braking was proffered, but excluded, to show that the engineer was going too fast and didn't break on this occasion).