* Paperclip in the copier? Make several photocopies of a paper clip and put them in the paper tray. Watch your coworkers go nuts looking for a paperclip stuck in the copier.
* Surprise! Place several copies of a “surprise” image throughout the paper tray for 9 to 5 entertainment.
* What the.... Swipe the tip of every pen and pencil on the desk with clear nail polish.
* Just missed it. Dial your coworker’s extension every time they walk away from their desk. Then hang up as they answer.
* Wrong number! Switch two of your coworkers’ phone plugs.
* Have a seat. Pulling a chair out from underneath someone is dangerous and mean spirited. But re-adjusting the height can be hilarious.
* Can you hear me now? Clear tape over the holes in the phone mouthpiece is a classic.
* Annoying, yet fun. Disconnect your victim’s keyboard or mouse.
* Possessed computer. Insert a wireless mouse USB in your coworker’s computer and take control from a few feet away.
* Humor your boss. Have everyone in your office request the same day off, one at a time.