One of our new roommates had a grating habit of saying 'SOCK it to me!' while punching us in the shoulder (lightly, but still). Saw he'd gotten socks for Christmas and hatched my plan...

He was the type that waited until everything was dirty before doing laundry, then would leave his crap in the dryer forever. When I saw him loading the washing machine I knew the time for revenge had finally arrived.

I'd purchased another pack of socks- same brand, same color, smaller size. As soon as his clothes went in the dryer and he was back playing his game I snuck in and stole half his socks, replacing them with the socks I'd bought.

Couple days later he's talking to anyone that would listen about how only HALF his new socks shrank in the dryer....