I heard it's good to spice things up a bit...(they like variety). 
Interviewer: Well, welcome to the school, thanks so much for coming to the interview
You: (confused look)
Interviewer: Hm?
You: I think you might be mistake. You're not interviewing me..I'm interviewing you (at this time bring out you pen and pad)
You: So tell me a little bit about yourself..
Interviewer: You realize your spot at the school is on the line right?
You: (makes note to self, while muttering under breath "subject shows no sign of desire")
Interviewer: Alright I've had enough, please escort yourself out.
You: Well, I want to thank you for your time, and you will be notified for a decision in a couple of weeks.
(Slowly leave while "whipping" and "nay-nay-ing")