Science!
Aged about 16, messing with a mate in the science lab one afternoon, mixing beakers of random fuming ingredients while cackling like a demented mad scientist.

Set off a cracker of a reaction in one jar that hilariously filled the entire science lab with poisonous gas. Fortunately our chemistry was good enough that when we saw the dramatically red gas coming off it we reckoned it was time to scarper. We thoughtfully locked the door after us, but I reckon it must have cleared by the time classes were held there the following day as no one died or anything.

I blame our science teacher who was a bad influence, he was constantly lifting materials out of the lab in order to build electric fences and worm his cows and shit on his farm.
(cutofyourjib, Sun 11 Sep 2011, 19:43, Reply)