Haha, ah the joys of going to a waterpark or a place where hundreds of people are there at the same time! I'm with your son - definitely need dividing walls between the showers! In 6th, 7th and 8th grade we could have taken a shower after PE in the girls locker room, but there was no way I was taking a shower even in front of a bunch of girls because they weren't separated showers!! Good thing for me I barely broke a sweat and didn't really need a shower! :)