Write a message on an upside-down paper cup that alludes to something horrible being trapped under it.
Leave it on a coworker's desk or in a conference room.
1359
1
Put tape over the optical sensor of someone's mouse.
761
1
Fill someone's hair-dryer with baby powder.
678
1
Place a pair of pants and shoes inside the only toilet stall in a rest room to make it appear someone is using it all day.
671
1
Take a squirt gun into the rest room stall next to someone and shoot little drops over the wall every couple of seconds while pretending to pee.
