One of my favorites was my freshman year, 06-07, we had Xavier at home and during a timeout the flag runners were running so close to the Xavier huddle that the flags were grazing players. The coaching staff all went crazy, screaming at the refs and the student section, which was loving it. When the band played "Hey Baby", lyrics were replaced with "Hey, hey Xavier, we wanna knowwww, how you like our flags" and one assistant of theirs lost it, screaming "ZERO CLASS" to the students for like the next 10 mins.
The best part is, Bills won by 8 or 10 points.