Well my favorite was (and this was real)
~1 hour phone interview, which I didn't think had gone badly, then,
CorpMoFo: OK we'll be in touch. But I have to tell you I don't usually hire people out of higher education jobs. They just don't understand business.
Me: Then wasn't it a waste of your valuable business time to sit there and talk to me for an hour?
Needless to say I didn't get the job but also needless to say I don't think I was going to anyway!