You don't need to die to injure yourself on a bike. I've hit ruts in the road and scraped my knee and torn pants. I've slipped my foot off the pedal and wacked my shin, cut my hand putting a chain back on the derailer, and nutted myself on the seat by hopping a curb.

Contrast that to the fact that I've never been injured in a car, even though I've been in a few accidents.