JCC slightly mean jokes to do to friends and colleagues

Replace all the coffee in the house with whole bean coffee if they don't have a grinder.
Take the power plug to the cable box an hour before the premier of the Walking dead.
Change there DVR recordings to only record episodes of a show they hate.
Short sheet the bed.
Borrow their iphone and change their name with Siri to say something bad when asked who so and so is. Coworker did this to another coworker and his kid activated Siri in front of him and his wife. It said something really bad when it did.

 

Steal $14,000 from them via credit card purchases.

 

I taped a piece of paper over the sensor on a co-worker's optical mouse one day. She was too smart though. She figured it out instead of calling IT as I hoped.