What office pranks have you pulled on your co-workers and how did it go?

1. You know how you can fray Duct tape and pull off long little sticky threads of it? So I pulled off a single long piece of it, and put it down the side of my manager's brand new car. Looks like a deep, horrifying scratch on the paintwork. The look on his face when we went out for a smoke. He threw his hands onto his head, his knees went weak and he basically crawled over to it, and pulled the thread of sticky duct tape off easily. Harmless and fun, that one.
   — FinalEdit


2. One of my Co-Worker has a ton of family pictures all over his desk and walls. I was slowly changing them all to pictures of me. I worked really hard to find similar pictures to replace them. I even traveled to some of the places to replicate them. I just about had them all when another guy we worked with asked him why he had so many pictures of me. He thought this married guy had a crush on me or something.
   — littleredhoodlum


3. I gave this response to a similar question about a month ago, but I'll repost. There's a guy in my office who often comes to work in jeans and a t-shirt and changes into his work clothes in his office. He's taken over half of a closet next to my cubicle with his dress clothes. A few years ago, on March 31, I came into the office around midnight and swapped his clothes for some Hawaiian shirts, checked pants, basically a whole wardrobe of the loudest clothes I could find at a thrift store. When I got there the next morning, he was closed up in his office. His secretary told me that he'd been having a pretty rotten week in terms of workload and was in a foul mood. Finally, he emerged wearing his jeans and t-shirt. He sort of grunted a hello at me, opened the closet door, and just stood there for probably 10-15 seconds trying to wrap his brain around what was in front of him. Finally he just started cracking up laughing, and put on one of the more "understated" outfits. He spent the rest of the day trying to figure out who had done it; meanwhile, people from all around the office came to behold my handiwork. I finally fessed up at the end of the day. He swore revenge although he still hasn't made his move. Best April Fool's prank I'll probably ever play. Edit: had to do a little digging, but [here's](https://imgur.com/a/qkYb8) a before and after.
   — JedLeland






4. I made 20 copies of a paperclip and put them in the paper tray of copier. A woman in my office made a copy and got the paperclip in the pictures and thought there was a paperclip in the copy machine somewhere. She was searching and searching and even went and got a flashlight and started looking everywhere in the machine. She was opening up drawers and panels for 20 minutes. It was pretty fun to watch.
   — IrishGuyGolfer


5. Guy made this HUGE deal about being the "Safety King." He went on vacation for 2 weeks. I spent that two weeks building him a card board castle in his cube. Got to work at like 6am to try to beat him and get a reaction. Someone tipped him off and it was torn down by the time I got there.
   — XIGRIMxREAPERIX


6. I work in a conservative, suit and tie office setting. We're a bunch of lawyers, and basically boldness in our sartorial choices is reserved for ties and wristwatches. So one day, a few of my coworkers and I got fake but realistic nose and lip rings and went into work like nothing was up. Our boss saw us and started sputtering about how inappropriate we were (she's like a slightly drier Angela Merkel) and that this was a law firm, not a record store. So we let her at us for about fifteen minutes until she dismisses us. Then, at lunch, we take them out and pretended it didn't happen.
   — James__K__Polk






7. At a bookstore I worked at it was something of a tradition to pull some kind of departure prank when people were on their last day. I've told the story before about the guy whose last day prank was to order fifty copies of Mein Kampf, permanently screwing up our inventory in the process. My own last day prank was to go around on those ladders you see at a lot of bookstores and unscrew every lightbulb in arm's reach just enough so it wouldn't come on and wouldn't fall out either. Apparently it took them days to figure out there was nothing wrong with the wiring in the place.
   — schnit123


8. Helped my friend move an entire cubical up a space. It was difficult because they wanted it to be perfect not like they just switched desks. To achieve it we actually took the cubical apart and moved the walls so none of the decorations moved even an inch, next we took up the 9 carpet squares (why I was brought it) and switched them that way the big coffee stain and whiteout explosion stayed. Everyone then shuffled so guy in seat one was now in 2, 2 in 3, ... 20 in one's spot. Now the only thing to cue him off was that his cubical was directly under the fan and he hated being cold. A friend told me he worked for 2 days before starting to claim that they moved the fan. took him almost a month to notice that the "other row shifted because the guy directly next to him before was now one desk back". During this time he started wearing jackets and sweaters because of the fan.
   — suitology


9. I used to work in this restaurant in the downtown area of my city which had several restaurants near by. Whenever we would get a new dishwasher or inexperienced cook we would say something like "Hey, we're out of ice mix, head to restaurant X and grab some." The other restaurants were in on this and the poor kid would be sent restaurant to restaurant until he caught on. Another good one is to send them for the "long stand". Same kind of thing but they come in and ask for the long stand, then they are basically left to stand there as long as it takes to realize that they are an idiot haha.
   — Missteeze






10. Not an office but it actually got pulled on me. Working as a new EMT and I'm put on a truck for training with these two guys who loved fucking with rookies. Most ambulance bays have a keypad to type in the code to get in. We were pulling into a hospital I hadn't been to yet and I preemptively ask him what the code would be so I dont look like an idiot. My partner tells me " They have a retinal scanner here, just put your eye in front of it". Im fucking stupid and believed him. I don't know why, I was just so worried about doing anything wrong that I was trying to do everything right so I didn't even question it. We take the patient over to the doors, I see the lil camera and pop a squat and stare at it for about twenty seconds. Meanwhile, my partners and patient are dying of laughter behind me and grabbed a picture of it. I ended up famous on an EMS Facebook page, but I was pretty cool with it. Cant say I wont do the same now when I get a trainee Edit: Here's the picture. https://imgur.com/a/9TtIg
    — CPR_Guy


11. Well, i didn't pull any pranks, but when i walked in this morning, every computer background in the office had been changed to a picture of me from middle school.. I still don't know who it was, but i have guesses
    — BurritoBass


12. Not me, but a guy I know. He stole a coworker's novelty giant pencil, then started emailing said coworker in-character as the pencil, with photos of the pencil in different locations around Europe. He even got another coworker in on the act to deflect suspicion away from himself, and used proxies to ensure the emails couldn't be traced back to him. The original owner of the pencil got so pissed off, it initiated a company-wide hunt for the perpetrator. So far as I know, it was never resolved, and Pencil McPencilface roams the world to this day.
    — batty3108






13. Printed out 9 pictures of Nicolas Cage, hid them throughout a coworker’s cubicle, then admitted it was me that hid 10 pictures of Nic Cage.
    — ElToberino


14. This is at my last job. Every single day for probably two years, I would step into the marketing guy's office, and lower his chair as low as it would go. I found the guy really annoying, so it was, from my view, just a harmless prank. I guess I overdid it though. One day my assistant editor was sitting in the marketing guy's chair, and the marketing guy lost his mind and beat the living shit out of him. It was like the new Dave Chapelle bit, "you had this coming," and just kept wailing on him. Honestly, it was pretty scary. Neither of them stayed at the company after that. I only confided in one person at that company that I was the one lowering the chair every morning. She never said a word, and I don't play pranks anymore. Edit: Thank you /u/BoMcJepstein for the gold!
    — rabidoverlord