We've all seen those signs.
But an Ohio Burger King worker has been canned for taking a what looks like a naked sudsy bath in the restaurant's utility sink.
A video of the stunt was posted on MySpace.
Timothy Tackett tells a Dayton TV station he's the guy in video.
He says he's sorry because two other workers lost their jobs, including the co-worker who was working the video camera.
Local health officials report the Burger King sink has since been sterilized.