It all depends on how many people stop and go to help. Being that I have no medical experience I wouldn't pull over if I see people already helping the individual(s). I've seen a person roll over there car multiple times right infront of me. I pulled my car over but by the time I went to get out there was already 5 other people running over there and the lady got out and began to walk. So I went on my way. Now if I'm the only one there when it happens then definately I would get out and try to help. Now if its some jackass drunk and acting reckless then I don't feel I should help because they put themselves in that situation and could have killed others on the road.