Feynman's version of messing with the censors:
https://books.google.com/books?id=7papZR4oVssC&pg=PA114#v=on...
Lots of very interesting bits that made me laugh.
Edit: Found a link for those that cannot see it either: http://litru.ru/book/?p=214644&page=24 . No idea why Google decided I cannot read that particular page.
The trick he played on Teller and then Teller seeing through it instantly, priceless.