Come to think of it, I've been hit from behind this way twice, and done it to someone else once. I'm sure self-driving behavior is a factor here, but I also su

Come to think of it, I've been hit from behind this way twice, and done it to someone else once. I'm sure self-driving behavior is a factor here, but I also suspect that breaking and passing at intersections is just a common cause of zero-damage accidents. After all, one of the collisions in the story was a bike rear-ending a car - how many drivers would report that if there was no damage?