err... W.T.F'mate? Most of that looked staged, There's no way he would have got away with it otherwise (unless there in the habit of letting people walk around freely!)
I'm sure it was staged, but it was priceless to see him fake-acting excitement about SMT components and then commenting about the cafeteria with the "chess club". I don't know if you're aware, but Conan is a late-night show host that does comedy bits. He'll be taking over the Tonight Show from Jay Leno come 2009.
[OT] Call me sad, but i will never get bored playing chess... and yes, i did sit in the school library and play chess (Hey, i had to do something when my user account was locked! lol) [/OT]