It was back in my 7th Grade year, during my Pre-Algebra class. To boot, there were a couple of things wrong with that class...
1) 10th Period. Last class of the day. Everybody wants out.
2) Math. *snore*
3) Really old teacher. Wanted school to end as much as we did.
4) Sitting next to the two biggest jokesters in school who, frankly, did not seem to care much about math at all.
5) 7th Grade.
So, one day - *they* started whispering to each other. Loudly. Teacher told them to stop, so they did... for 5 seconds. Again, *whisper* *whisper* *stifled laughter* *point at random student* *more stifled laughter* ... teacher told them to quiet down, again.
They stopped. This time, much longer. Teacher continued on with her lessons, writing notes on the board, kinda forgetting about this incident.
She was on the opposite end of the classroom, when they started talking... again. I overheard the two talking, "Ready?" "Ready."
Suddenly, one of them LEAPS onto top of his chair, screams out "VIVA LA VIDA!!!", and jumps onto the nearby radiator, producing a very audible "FFFTWANG!!"
Halarity ensues. Whole class is in an uproar of laughter. Teacher exhibits bad poker face. Rest is history.
