I would probably write a nice note of "you owe me $140" with my key in their door if they did that to me. I had a guy park that that next to me in the movie theater and I was about ready to kick his door in when I realized he didn't give me any dings.... You have better self control than I do. I agree I dont condone damaging other peoples cars when they are going over the top trying to protect it, but if they lack a little respect and awareness its free game.