We had a large plastic coke bottle filled with a gas (probably hydrogen) then the neck-end lit fly across our heads and pop against the back wall, that was interesting.
We also had to evacuate the lab once when some twit decided that blowing into the extraction tube of a flask containing brown Bromide gas and watching it toot out the top would be funny.. Dissolves your pleural membranes IIRC.
Then of course there was the bits of wood being fired across the room by the circular saw in woodwork, and the merriment we had with large gas cutting torches in metalwork..
So sometimes it's not surprising about the fun police cracking down!!