My Funny Picture

What are some harmless/appropriate April Fools pranks I can pull for the office?

Public Comments

1. One year, I changed the language on secretary's computer to Swedish. She did not know how to change it back to English.
2. unplug all the mice and keyboards? turn every set of speakers up all the way? lower seats for the tall people..and make them higher for the short ppl if the monitors have color adjustments or size adjustments...make the screens funny shapes or black them out
3. In the elevators I put a sign next to the buttons that says "Look up"... if you look up on the ceiling there's another sign that says "Made you look!" (In small print below that say "April fool!" It's really dumb, but it cracks people up.