The author of the parent comment set up his own 'experiment' on the roof of the school that was planned to go off at graduation. I am assuming it was nothing ma

The author of the parent comment set up his own 'experiment' on the roof of the school that was planned to go off at graduation. I am assuming it was nothing malicious but something 'fun' like fireworks. Unfortunately for the author, another student climbed the roof and discovered the 'experiment'. He reported it to a gym teacher, who was suspicious of what is was and subsequently called the Bomb Squad, therefore spoiling the graduation 'surprise'.