I wouldn't believe this one... parked car hit me!

That really sucks. It never ceases to amaze me in campgrounds how few people are really on the ball and can predict the movements that truck/trailer combos are going to make, and make adequate room for someone accordingly. I've noticed a real lack of courtesy at times when trying to back in as well.

If you have taken photos and a statement to your insurance agent that is likely all you can do.