Sounds like a moneymaking opportunity to me. I'll sell assguards...
Don't think someone won't really try. I know I stopped using drugs because of a message I saw on a urinal shield (you know those plastic or rubber screens in the bottom of urinals to keep the cigarette butts from being flushed) once. There plainly printed on the urinal shield was the message "Just Say No To Drugs" (swear to God). It was enough for me. I quit the next day. (just kidding, I don't use drugs)
Just think of the advertising possibilities. Kind of a piss poor place to promote your product.