Ever read "Surely you're joking Mr Feynman?"
http://links.jstor.org/sici?sici=0012-9658(197403)55%3A2%3C291%3ASFOLHT%3E2.0.CO%3B2-1#abstract
Another paper.
Anyways, yes, I have read that. Mr. Feynman was quite a bongo player. I was just down at Jet Propulsion Laboratory last Thursday. Small world.