Okay, I know some jokes are in poor taste, but sometimes that's what makes them funny.
I received the following joke from Comedy Central's joke of the day e-mail list I belong to. I'm only sharing this because it made me laugh and groan all at once.
I bought a bunch of land in upstate New York, and I built a bunch of cabins and bunks and things on it. Figured, I'm going to start a summer program for kids with ADD. I don't know, no one showed up. I don't know what I did wrong. I was calling it: Concentration Camp.