A few years back, we were camping at a packed CG over a holiday. The people next to us were in a trailer and were real animals. Dogs off the leash, noisy at night, smoky fires, kids on bikes, and the worst part is they allowed their brats to throw a baseball down the fairway right in front of our units. A toy hauler across the way received a big dent from a wayward baseball and these miscreants never bothered to tell the owner who wasn't there at the time (I eventually did). The baseball hit the right side of our rig once and I grabbed the ball and made one of the kids come get it from me. I calmly told him that the first one was free but the next time the ball hits my coach, it's mine. Sure enough, later in the day, BANG.
Fortunately, no damage, and I still have the ball.