I'm a little bit of a prankster myself!!! Usually just small things, like a co-workers lunch in the microwave. For some reason people think they can just put their food in the Nuke Oven and leave for a couple minutes. Here is where it gets really fun. I normally choose to stop their food from cooking..... they come back and either realize it right away and add more time (and then leave again, usually ends up taking them 10-15 minutes to cook a hotpocket!!!!!) Or they take their food without realizing it and end up wondering why their food is still frozen! Every once in a while, if it's somebody that I'm pretty good friends with and I don't mind buying them lunch, I'll add about 5 minutes to their meal. That usually leaves everything hard as a rock or so damn hot they can't eat it for half an hour! Fun times!!! Did this today as a matter of fact! Did the bosses coffee or hot coco or whatever it was a few weeks back and caused the whole thing to blow up in the microwave.... he didn't understand why it did that. I was laughing my ass off in the next room while he cleaned up the microwave..... then I started feeling guilty.......... and scared........ so I helped clean it up.
Another one that I use every once in awhile is the random pink puppy belliing. We have some incredibly hot hot sauce in our workcenter. Daves Insanity and Spontaneous Combustion are two of the more popular brands. If any of you have ever tried them you know how hot they are! We're talking the hottest shiat you've ever tried hot! Anyhow, the random part comes in the form of smearing it over the mouth of a can of soda in the fridge. You never know who is going to buy it or when, but you damn sure know when they do!
It's also fun to offer up the hot sauce to people that aren't familiar with it. They try to use it like tobasco or something. I've seen people throw away their entire meal b/c of a couple drops of that shiat. Funny stuff! I like it, but seriously, you can only eat that stuff in small moderation.......... very small!
I could go on and on. We've taken bailing wire and tied up everything at a persons desk. Their chair tied to their desk. The desk drawers wire together so they don't open independantly! Even lockers so that they don't open until you reach in and cut that wire! Speaking of lockers...... damn don't get me started. Funny story, I'll tell in a minute.
One last one though b/c it's really easy. Take a pocket knife to your buddy's soda can right after he opens it. Put the whole right below the mouth opening...... next time he takes a drink he'll wear it! You business suit types may not want to try this one! Once you do it often enough you graduate to having to make two or three holes.... DECOYS!!!!