On the last day of the Game Developer's Conference Sean Vanaman (Telltale games writer), Rhianna Pratchett (daughter of Terry and writer of the Overlord games), and Tim Schafer (oh, you know him and not Sean Vanaman? Shame on you) chaired a panel on Comedy In Games. 1Up has a nice sum-up, along with some nice quotes. Of course Tim gets all the best ones.
Moderator: Either within the games world or outside it, what informs your comic sensibility when you're putting together a script or a game?
Tim: [long pause] Where are we stealing our ideas from?