Do you know what was really weird in class today? Me and some other class-mates bought some of those magnum sharpies* and then, with protective masks took them apart and then put them back together in a different way with small stands so the head of the pen was facing up. Then we brought them to school (LOL) and uncapped our newly made "stink bombs" and rolled them around the room, soon the whole room was
unbearable and ad the whole class got very bad headaches, :P! So there you have it, our horrible stink-bombs that we had to be evacuated, but we sneaked the sharpies out of the room before the principal/president came in to inspect and never got caught, no homework that day!
*

(actual size)