My first roommate was a Jewish guy from Scarsdale. Generally an all-around obnoxious fellow, dumb as a box of rocks. We managed to remain civil regardless, until he owed me about $150 at the end of the year and I had to bitch him out until he paid up. We'd bought a futon together with the agreement that he'd take it and pay me at the end of the year. I wouldn't have gone in on the deal if he hadn't assured me that his parents were aware of the deal (it was purchased with their credit card) and the money was coming from them. Valuable life lessons about assholes: learned.

My second roommate was a friend from freshman year. I lasted two weeks before I moved out into another dorm. He was a good guy, but the kind of person you handle in small doses. As much as I like the kid, I would have ended up killing him living together.

Third roommate was a guy who had returned to school after being away for two years. Generally not the brightest dude ever. I'll remember him for walking into the room to see him sitting on the carpet bare-assed jerking it while watching porn on his computer (it was sitting on his bed). I made sure to knock every time I entered the room thereafter.

Got three roommates now that I've known since freshman year. Great guys. We all have our own rooms (and bathrooms) so that certainly helps. Plenty of stories about them, but I'm done for now.