I was chatting with Boobs yesterday about some office practical jokes that I like to play and thought I'd share a few...

- Putting a post-it note under a infrared mouse and watch your colleague spend five minutes checking all his connections.
- Turning off the lights in the office toilet while a fellow colleague is taking a dump
- Pretend to transfer a call to a colleague, then put on a fake voice and see how long it takes them to notice
- If a colleague leaves their computer unattended, drafting an email to the entire office enquiring if anyone has any pile cream they could borrow.

What practical jokes have you played on people? Or maybe you had one played on you which has left you mentally scarred? Either way, let me know so I can expand my repertoire.