Our biggest pet peeve now is if going to a theme park (we avoid them but sometimes with visitors or kiddies on board or ......), they now search your bags and make you pay for a locker and lock your brought with you food/drinks in them. Pay for the locker and pay their elevated prices for food and drink within the park. That's just plain mean, for us and there has to be others that feel the same way, now they get maybe one tenth of the admissions out of us compared to having us visit more often when we weren't felt so nickel and dimed. Remember when parking was free and admissions were also more affordable?
