My driver's education teacher insisted that all drivers involved in an accident were at least partially to blame. We came up with the most extreme examples to prove him wrong (like a deer jumping from behind a boulder into the road at the last nano-second). He held his ground.

His point was 1) virtually all accidents are avoidable if the drivers are all paying full and proper attention to every aspect of their driving, and driving accordingly; 2) if you are not willing to take the consequences for getting behind the wheel, you shouldn't do it.

I think that there is something to this.

Cheers,
Jamie