Heard of rather than seen it.

My dad started a rumor that a coworker kept jello in her desk. Just mentioned it from time to time and let it be. Time goes by…

One Monday morning he goes in early and reignites the rumor.

When the coworker arrives there’s a crowd outside her office. She’s annoyed and throws open all her desk drawers to prove her innocence… and finds her file drawer full of lime jello, one unpeeled banana in the middle.

If I recall right she laughed until she peed herself.

The drawer was large enough it took my Dad most of Saturday to fill it. And most of the space in our fridge.

Edit: There was also a time my dad and I rented a small trailer and took some stuff to the dump.

I always loved this as we would look around and see if there was anything worth scavenging and bringing home.

But no, nothing interesting.

On the way home I turn to my Dad and say “Let’s tell mom and sis we found a moose head.”

They believed us, we go out to the trailer and I’m opening it slowly to reveal that it’s empty… and a prior renter had spilled some red paint in the bottom.

My sister screams “IT’S STILL BLEEDING” and runs inside.

I could’ve never predicted it would go that well. I’d of course meant a mounted moose head. And this was in Florida, where I’m fairly sure there are no ‘fresh’ moose.

Edit 2:

Thought of one more.

My sister and I are at karate class and my parents pick us up. They got donuts while waiting for us.

When we get home, the dog had taken a crap out on the patio. My dad goes to clean it up and yells “he got into his eye medication! It’s all slimy.”

We go and look and sure enough it’s covered in whitish crud.

My dad picks it up.

“Looks like dog shit.”

sniff

“Smells like dog shit.”

takes a bite

“Tastes like dog shit.”

My sister and I screamed and ran to our rooms as my dad ate his glazed chocolate doughnut, laughing his ass off.

All these pranks were within a year of each other.

Someone was lightly victimized in this, but no one was upset and it was all in good fun.

Years ago, my buddy taped an air horn under his boss’s chair. We worked in a bullpen and the boss had a fishbowl office in the corner. He came in and sat down and of course it went off. Boss fell out of his chair, everyone stopped working, and everyone’s morale was super high the rest of the day, especially the boss.

The boss had never felt like part of the team. Most of us had worked together for years and we all played light pranks on each other. He came much later. It was the first time he really felt like one of us.

Next time you have some friends over and one of them leaves their phone unattended, take a picture of it.

A little bit after they leave, send them a picture informing them they left their phone at your house.

something harmless my dad likes to do when hes walking with a group of people and is in front is walk to the side and pretent to examine something. causes a whole group of people to go walk over and look. and go nuts when they dont see anything.

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I hide gold coins (but any kind of fun token will do). Who doesn’t like a finding a gold coin?

It started when I used to do leprechaun cosplay. When you do that, you inevitably will get asked where your gold is hidden, so I got a bunch of cheap plastic coins to hand out when I got “caught”, or to “drop” if chased. For the heck of it I started slipping them in my friends’ bags and costumes while they were out.

Eventually this lead to hiding them in peoples homes when I visit, and reverse pickpocketing friends: pockets, purses, hoods in winter so they will fall out when they flip them up to go outside, behind wall art, inside a skein of yarn someone is knitting from…

I think my biggest get was slipping one into a theater director’s shirt pocket while they were talking to someone else. And the biggest surprise might have been one I put in an attic ladder hatch so that it fell out when they went to go up there months later.

Stick a small piece of paper under the mouse of a colleague, covering the laser sensor and watch them go crazy trying to figure why the mouse doesn’t work. Bonus point of the paper is the same colour as the mouse and it’s hard to see.

Whenever my colleague at the neighbouring desk left her laptop unlocked, I would go in, and create a new Word document saying ALWAYS LOCK YOUR LAPTOP in huge red font. She vowed she would eventually get back at me.

I once took a screenshot of some random text in a Word document with “CONFIDENTIAL” as the background watermark and then I used that screenshot as my lock screen wallpaper. When I locked my laptop and left my desk, she clocked the content of my screen and thought it was finally her moment to get back at me, but… it wasn’t.

We had an office with a backdoor out into a tiny parking lot (~5-6 vehicles). There were guys with weed whackers. The sound kept going forever and ever and ever. Turned out that my coworker had subtly tuned the stereo (hooked up to a computer for streaming) to a YouTube video that was four hours of weed whacker noise. It took like 45m for someone to complain and he just started laughing uncontrollably and was found out. He’s a good friend and I’m still mad at him for that when I remember it. Ace job pranking us, though. The workers had been long gone.

I was eating pistachio nuts on a bus in London and carefully put all the shells in the hood of my friends coat without her noticing. We went to a restaurant and I forgot all about it. At the end when we got up to leave she pulled her coat off the back of the chair and dozens of pistachio shells went flying all over the floor.

A few years later me and the friend got together. That was almost 10 years ago, so happy ending :)

Take a full screenshot of the desktop, then edit the image so you flip it upsidedown (180). Now, put that image as the background for the computer, and hide the taskbar, and any desktop icons. Lastly, update the monitor setting so it is upsidedown (180).

For the user, it will seem like everything is normal, but when they move the mouse, it will go in the “opposite” direction (as monitor has been flipped).

To help them solve to fix it, the easiest is to flip the mouse around upside down, and move it around like normal.

We were getting called in to HR one by one for unclear reasons. Turns out we were getting our annual raises, but my boss and his boss were both handing them out that day. I and a coworker go in first; on the way out, they ask us to send a third coworker in first.

We look at each other and instantly know.

We both walk up to her desk, stony-faced, and tell her “You need to go down to HR. [boss] and [big boss] need to see you.” She is nervous, but we insist she just needs to go, now.

Ten minutes later she comes back and chews us out, but is laughing all the way.

At our last office, the accounts receivable department decorated for Halloween and put a stuffed dummy I a chair in the hall. Then ON Halloween, put their chubby intern in the chair in the outfit instead. Scared the heck out of most of upper management. Very good day at work.

At the job before that, on April fools day, I got each of the ladies working in my department (including me) to go separately into the boss’s office and tell him we were pregnant, giving the same month as when we were due. He didn’t figure it out until #4.

My friends/roommates used to “fire” each other’s rooms. It involved getting a couple big handfuls of taco bell fire sauce and hiding it in every place they could find.

I had my room fired and 3 years later while traveling, a fire sauce packet flew out of my shirt pocket as I was getting dressed. By far my favorite prank.

At my last job, there was this one conservative dude I really disliked. He was friendly but his views were not very friendly.

After I left the job, I got a call from him asking if I could be a reference on a job, and I said sure. Said company called saying they were offering him a position in a different state so I gave him a raging review. He called me afterwards saying he got the job and would be moving to a different state far, far away from me. Success.

Not really a prank I guess, but there were ulterior motives at least