Congrats, @MilleniaMyth ! I found yours downright funny, and original!
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*Your warbling some favorite oldies song. Your principal walks past looking annoyed.*
Principal: What exactly are you doing?
You: Giving a concert to the hallway to see if I can get on American Idol.
Principal: Stop it then. You're making my ears bleed.
You: But I-
Principal: For talking back, you get a lunch detention, until spring break.
*You walk away crying. principal picks up where you left off.*
You:O.o