Denying HS Diploma Because of Cheers? Penalty too Harsh?

[OOhsoflyDELTA#9]

the cheers for my younger brother at his HS graduation a couple of years ago were long and loud BUT he was a popular (I guess) and most came from people in his class...if my mom's baby didn't get his diploma that day ya'll woulda seen that chit on CNN....I say this to say that the kids can't control the spectators...just throw the loud ones out and K.I.M...let the students have their day....