My pet peeve is the people who beat the **** out of their significant or insignificant other (this happened at an upscale snowbird resort). The screaming arguments (same resort). The people who leave their pets out all day and/or night. The dogs that bark followed by the owner screaming "shut up" which does no good at all (seems like everywhere). The pet owners who do not pick up after their pets because they are either "special" or they are overnighters and therefore do not have to follow the park rules. The people who open their vehicle doors and let junk fall out (paper and stuff) but don't pick it up. And those nosy people who want to look inside my rig (why?) or talk to me. Then they get upset when I don't want to talk to them.
Not RV Park but.... the people who can't push a shopping cart into a cart corral!
And people wonder why I prefer to stay overnight in parking lots when I travel.