If it makes you feel any better someone dented my door today. It isn't even that noticeable to anyone except me, so I probably won't do anything about it. But it is very, very annoying.
I think Vincent from Pulp Fiction says it best,
"You don't **** with another man's vehicle. It's just against the rules."
People need to respect other people's cars. I don't go around denting doors and keying other people's cars. I wonder how they would like it.