Dustin Hoffman and David Letterman

Dustin Hoffman can't seem to appear on a late night talk show unless he drags out a filthy joke.

This story was mild compared to the joke he told Tuesday night when he was a guest on Late Night with Conan O'Brien.

The joke was peppered with f-bombs and the punch line was the c-word. Of course, the words were bleeped. I don't know why they bothered.