OK I’ll set this one up for you.  I just love it on Letterman whenever the announcer Alan Kalter gets involved.  Every now and then they do a skit called Alan Kalter’s Celbrity Interview in which Alan books his own guest to interview.  It’s always the guest Dave had just finished interviewing and Alan throws a hissy fit because Dave got to him first.  It’s really hilarious and they’ve done it with a bunch of different celebs so maybe I’ll post more of these.