In the late 1930's, the chemistry lab on the third floor of my high school emitted enough H2S that we thought everyone in the school was farting.
The most potent weapon we had in HS was the rubber band. You could fire spitwads or paper clips very accurately with an innocuous rubber band. Guess by today's rules, I would have spent all my time in diversion. Or jail.
In high school chemistry, the guys on the back row would heat up nickles using the bunsen burner and toss them in the hallways when they were full of students changing classes. Good times...