calling the police is the first thing, then deciding what to do to IMIDIATLY reduce the danger. I had the same debate with my partner about a man who was sitting in the middle of the road. We called the police and then i wished i had stoped the car to protect him till the cops arived, it was a mestake i wont forgive myself for but my partner thinks i would have been charged with blocking trafic. Of corse i wouldnt have, i could have blocked ALL the traffic coming around the corner with the car and the police would just have said thanks
The same goes for a car acident, i always stop and you stop your car in such a way to protect yourself and the other people in the cars
Im SO pissed off with myself that i didnt stop yesterday, if he had been killed it would have been on my head