The office prank is sometimes the only thing keeping us sane in the workplace, and just as businesses grow more creative and innovative, its workers’ pranks have become more elaborate. The Internet has allowed us to document these pranks like never before. Here are some of Huff Post’s favorite office practical jokes.

10. Who knew companies could hire 13 year old girls these days?

9. We’re 100% sure they didn’t get what they asked for.

8. Jello keyboard and mouse!

7. Princess vanity…Some of us would welcome such a prank and never change it back.

6. This was less a prank, and more a descent into madness.

5. What is it about pranksters putting offices in bathrooms…

4. …and vice versa?

3. Everything in the office was replaced with cardboard. Unfortunately they won’t be able to replace the time spent doing it with productivity.

2. While Sega employee Aaron was away from the office, his co-workers turned his entire cubicle into an elaborate level of Sonic the Hedgehog. Doctor Robotnik would not be pleased, but Aaron didn’t seem to mind.

1. It looks like this employee is being shipped overseas.