Then there are those who could pee on TV. At a party many years ago my friend had to go but there was a girl sitting next to the toilet looking in at some change she had dropped in there. He just whipped it out in front of her and let it go.
A little different line-I work at a big store. Sometimes girls will use the men's room, usually if the ladies is busy. They think it's funny. Sometimes guys, cross dressers usually, will use the ladies room. I asked a guy once why he had just used the woman's. He said he was hoping to get lucky.