person A: My neighbor ran into my car! They didn't even leave a note!
person B: What?  That's awful!  How did you find out it was them? Did someone see it?
person A: I could tell by the color of the paint left on my car_comma_ and their car now has a scrape with the color of my car. I don't know what to do.
person B: Oh boy.  I would confront them kindly and tell them you'd like to reach a solution without there being a fight or problem.  Those situations are never fun. Sorry.