Via Daniel Wolf.
So... two composers, a hard-core complexist and an equally hard-core experimentalist, happen to meet in the lumber department of a hardware store, waiting in line to get some plywood cut to order. The experimentalist asks the complexist why he's there. The complexist answers that he's "working on a very big piece, and I'm using so many oversize charts and graphs and tables and arrays" that he needed a piece of plywood so he could add an extension to his desk in order to accommodate all his paperwork. "Why are you here?" asked the complexist in return. The experimentalist smiled: "I like the sound of plywood going through a really big table saw."