- Rearrange the icons on their desktop.
- Super glue the telephone receiver to their desk.
- Constantly whistle annoying songs.
- Vigorously pop and chew gum.
- Hide your co-workers scissors and tape dispensers in a different place each day.
- Bring really stinky food for lunch.
- Place a clear piece of tape over the ball of their mouse so it won't roll.
- Link all their paper clips together.
- Place a fart machine under their chair; keep the remote in your pocket. When someone walks past their desk, press the button.
- When a co-worker looks at you, place your finger up your nose.
Beware: Doing These Things May Lead to Termination.