Am I the only one irritated when girls sit on cars? It's a car, a rolling piece of art. You wouldn't go to a museum and sit on a statue so why sit on my car? They can sit on the inside, maybe even lean against the car if they are careful but no leaning or sitting on the car.
And yes, I did hurt a girls feelings once when I told her to stop trying to sit on my Mustang's fender. "No you aren't fat, fenders are easily dented and a pain to fix."