One of my favorite things about public restrooms is the enjoyment I get from the graffiti written on the walls.  Always crude, usually profane, sometimes funny, and occasionally profound, you never really know what pearls of wisdom you may find while relieving yourself.

With apologies to truck stops and greasy roadside diners, dive bars generally lay claim to the best men's room graffiti.  For example, this cleverly written message I recently saw while bar hopping in Downtown Billings.

The second tagger here makes an important point.  If you are going to grace a bathroom stall or wall with your own message, have some class and include a reference to "your mom".