Greatest prank you pulled on another~

[Triumph]

My best friend used to bum smokes off me. So i took 3 or 4 matches and broke the heads off. I then took half the tobacco out of a smoke, put the match heads in and then put the tobacco in. Next time he bummed a smoke off me he got a hell of shock, when half way through the cigarette ignited.

That is ingenious. I swear I'm gonna use that one day...

Once I've put this note on a random car: "Hello, I'm sorry I scatched your car, for refunds please call this number." And I gave the number of my math teacher.

And another one took a little prep. We took a baloon, filled it with flour, then used up about 2 packs of gum, glued all the pieces to the baloon, and used some dark green playdough. Then we froze it and in the end we got something that looked like a fragmentation grenade. Then my friend (not me, I would NEVER do that) threw it through the window in the principals office... You can guess what happened next.

Fire in the hole...