The only bit of logic-based public bathroom humor I know is: the difference between men and women is that between the statement [P and not Q] and the statement [Q and not P].

Mathematics is no more computation than typing is literature.

When asked why he doesn't believe in astrology, the logician Raymond Smullyan responds that he's a Gemini and Geminis never believe in astrology.

I think, therefore I laugh.

I used to be surprised and even depressed when I met someone I had admired and discovered him or her to be a jerk or, perhaps worse, rather common. Now I half expect this reaction and even find it a little reassuring, maybe even uplifting. Isn't it amazing that somebody like that could produce such and such.

Defined broadly enough, mathematics encompasses everything.

In listening to stories we tend to suspend disbelief in order to be entertained, whereas in evaluating statistics we generally have an opposite inclination to suspend belief in order not to be beguiled.