Are you, or do you know, a habitual public restroom graffiti writer/artist?

I was just meandering through a couple of sites (http://www.thewritingsonthestall.com/ and http://www.graffitiproject.com/ ) and was sort of wondering who takes time out from their day to articulate certain ramblings and such onto a public stall’s wall? And more importantly, who carries a Sharpie in their pocket at all times?

So have you found yourself contributing to the collective art project that is a public bathroom stall wall? What have you written or drawn?