NP a little Derrida joke...from a piece in Undie Press (online) about working in a bookstore (St. Mark's, NYC, if you must know)

[Mark Kohut]

There were times when we consciously broke the code of cool. Jacques Derrida 
bought a copy ofDerrida for Beginners when Dan was at the register; Dan teased 
him with, “Still trying to understand yourself, eh?”