Sorry to bring up a long dead thread, but somebody else mentioned Carlin in another one.
My Dad and his father-in-law (my mom's dad...duh) never really got along all that well. But one weekend when they came down from West Virginia to visit, after Dad had recently sprung for HBO (oooh, aaaaah,) Dad and Grandpa sat down to watch a George Carlin special:
The first words out of Carlin's mouth went something like:
"Why is it that most of the people who are against abortion are people nobody would ever wanna berkeley in the first place!?"
That was the first and last time my Dad ever heard my grandpa laugh till he cried. 
