This one is pretty rare, but I've quoted it before.
(after parts 3,4, and 5 were singing a particularly disturbing song, then interrupted)
1: Oh, stop!
2: That's sick!
3: I agree! Nutter was singing in the wrong key!
4: No I wasn't! It was Loutzenheiser! I was singing in E flat minor.
3: The SONG'S in F sharp major!
6: I think they're the same thing. I mean, E flat is the relative major of F sharp.
3: No it isn't! The relative minor is three half-tones DOWN from the major, not up!
1: No, it's three down. Like A is the relative minor of C major.
5: But isn't A sharp in C major?
6: Wait, are you singing mixolydian scales or something?
3: A sharp is tonic to C major! It's the sixth!
2: No it isn't!
7: Well, it would be like a raised 13th if anything.
Saw this in college, and they gave out free Cannibal cake.
Cannibal! The Musical! I think.