The last time I had a car totaled (2nd one) the driver was undocumented, no driver license, no insurance. I asked the cop if he was going to run the guy in, and he said that only if I swore out a complaint! Yeah, right, like I want to sign into a personal vendetta? I live in So. Cal. , so you can guess who the other driver was....
And then there was the year I got tail ended 3 times in 3 months. The last time I had to take a long walk before I could talk to the other drive without doing something violent. He saw my expression and was VERY cooperative.