The first time I read "this sentence is false" it was scrawled in a bathroom stall in the philosophy department. Seemed appropriate. Left me wondering how many other people had also sat there pondering it for a few moments, certainly more than that had called that number for a good time.

Perhaps "this sentence is false" was actually the precursor to "Jeopardy", though.

Some come here to sit and think, but I come here to...

(if you sprinkle when you tinkle, be a sweetie, wipe the seatie)