Ok, so my mother just got me with a stupid prank, had my cousin call up and said someone racked up 3500 bucks on my credit card, had me going for a bit. (Since they had my address and other stuff). So now I need a good one to get back at her, I was thinking of setting the house on fire, but all my stuffs in there so that wont work. I need something non-destructive (no sugar in the gas tank). Any ideas?

