When I was a senior in high school we would go wild on the last day and wreck havoc at the school. We would get an occasional smoke bomb in the hallway once in a while. So I started collecting smoke bombs waiting for the anticipated day. I wired about 20 together and made the mother of all smoke bombs. I lit the fuze and kicked it toward some lockers.
HOLY SHIT!
I didnt realize the amount of smoke that 20 would put out. There was about an 6 inches of clear are near the floor. Otherwise you couldnt see 2 inches in front of your face. The smart teachers closed their doors right away and opened their windows. The dumbasses had their rooms filled with smoke and had to evac to the parking lot!
I was an angel in high school and the teachers loved me. So when the inquistion started, I was conviently left out of the dragnet that brought in the usual suspects. I also told no one what I did and got away clean!
But looking back, I could have got some teachers and kids hurt or caused medical problems for some.