Man - crap like that burns me up! People should own up to their mistakes. And, those being wronged should be gracious and not take advantage of the situation. Its an endless cycle that everyone needs to help stop.
Case in point, I've stopped at two accidents over the past several years to let the police know I was a witness. In one case, a guy blatantly ran a red light and smashed into the side of a car three cars ahead of me. I stopped, along with the car directly in front of me and we gave our names to the police. we confirmed to the officer that the offending vehicle ran a "really red" light (i.e., had been red for a long time!). Because there were two of us and we confirmed with police on the spot who was in the wrong, we never heard again. In the second, I stopped when the guy in front of me made a left turn from the center lane around a car in the left turn lane. The guy in front of me took out a green Acura with a family inside. Several of them went to the hospital. NOBODY ELSE STOPPED and this occurred at a very busy intersection! The offending driver was drunk at 4pm in the afternoon. I gave my info to the police. The drunk driver actually had a prior DWI and was trying to fight the second. I got called to court by the DA (which I was glad to do), and when the drunk driver's attorney saw that I was willing to show up and testify to what I saw, the case was quickly resolved without trial. I'm really glad I stopped because that poor family would have had no other witnesses. And, this drunk driver could have beat the charge otherwise.
But it doesn't have to be a major accident. I stopped at a grocery store last week on the way home from work and I watched as this "little old lady" backed out of a parking space and hit the bumper of the car in the next parking row behind her. I parked very far away from her, but then got out of my car (lovely Murano!) and stood in front of the store watching her. Because she knew I had seen her hit the other car, she stopped and left a note on the car she hit. I know that she was aware of what I was doing, because she kept looking up to see if I was still watching.
Let's all make sure we're looking out for each other out there!