Unplug monitors, unplug wireless mouse, took batteries out of the mouse... Work in construction, so there are a lot of prints around... Ended up building a huge complex structure. It ended up fallIng down before the guy saw, but it hit his keyboard and made the screen go sideways. Took him over an hour and the help on IT to fix it!

 

not really in an office... one of my coworkers plays pranks all the time. my favorite is when he ties an apron to a chair, then when the person gets up, the chair comes with...

also he's farted and my mouth was open.. that is my least favorite.

 

we took a cpr dummy and dressed it in inmate stripes. then stuck it in the water closet and unscrewed the light bulbs. female officer went to check the water closet and had to use her flashlight. she actually pissed herself. thank god i was dating her at the time.

 

thats not even a prank

 

well when you single it out like that.. it makes it sound more like a weird fetish.

 

Here's video of a foiling:

 

Thats a lot of foil haha

 

Filled a coworkers truck interior completely with bouncy *****. Put LED lighting on the underside of the same truck. I told him not to leave it at the shop while he was on vacation.

A few years ago when the Yankees were playing the Indians I had a coworker that was a HUGE Yankee fan (lame). He had a lot of figures and stuff of Yankees players. So I made each one a mask that happened to be the Indians logo. He wasn't too happy.

If you're outside and your friends door opens in (which most do) duct tape newspaper or construction paper or even butcher paper to the frame which will form a neat pocket you can put whatever your heart desires in. Some good examples are soda cans, beer bottles, racoons, midgets and even trash. When the poor, unsuspecting friend opens their door... CRASH! Good times.

Get an annoy-a-tron from thinkgeek.com! Those are fun.