April's fools tricks?

[Cathal]

Good pranks for April's Fools day? It's coming up soon...

• Sellotape one or two squares of toilet paper to the bogroll holder after rolling up or removing the rest of the roll, person takes the two squares and realises that's all that's left. Extra points for writing a note on the paper that was hidden inside the holder with "Let's play a game..." written on it!
• Fill the bottom of the toothpaste with Sudocream, so the next person to use it has an interesting mouthwash experience.
• Put tabasco in the mouthwash.
• put lube inside the doorhandle on the car?
• ...
• Profit?

Any other ideas? Was anyone here victim to a good prank in the past and want to share the experience?