Install the Blue Screen of Death screen-saver on someone's computer.

 519

3  

I just recently discovered that there is a national holiday named after Atheism. April FOOLS day. Like this story in the name of Jesus.

 1489

0  

Pull on a coworker is to press ctrl+print screen on their workstation, then paste it into Paint, save the pic, and set it as the desktop background. Move all of their icons to the trash. When they get back to their desk, clicking won't accomplish anything!

 1053

0  

Find a sleeping person, fill their hand with shaving cream and then tickle their nose.

 512

0  

Fill someone's hair-dryer with baby powder.

 470

1