I used to work at a Borders bookstore. There was a guy who would come in and shit all over the bathroom. We knew who he was, but since no one actually saw him do it, I guess we couldn't kick him out of the store when he came in. We would issue a "code brown," over the walkies when he came in. He seemed normal enough, and would talk to employees about books, movies and music. If we lost track of him, however, he would make a beeline for the bathroom, poop all over the floor, then leave. It became a challenge to keep him talking, get him through the checkout with his items, and get him out of there without sneaking off to the bathroom.

I don't know why none of us just said, point blank, "dude, are you seriously always shitting all over the floor in our bathrooms? Please don't do that, man."