Office Thief Keeps Taking Guy’s Special Mug, Quickly Regrets It After Ruining His Own Reputation

They say revenge is a dish best served cold, but in some cases it’s served room temperature and reeking of canned cat food. Office life is basically high school with ID badges and fluorescent lighting. Nothing gets people riled up like stolen lunches, loud chewers or the sacred workplace mug being swiped.

Forget HR complaints or passive-aggressive Post-its – one Redditor brewed the perfect cup of karmic justice. With a splash of sass, a sprinkle of stink, and one very bold strategy, he managed to teach an office mug thief a lesson he will never forget.

More info: Reddit

Office karma works in mysterious ways, but sometimes it smells like fish and shame

Man in office holding a blue mug, looking away thoughtfully, with computer monitors in the background.

Image credits: RDNE Stock project / Pexels (not the actual photo)

One guy gets revenge on his mug-stealing coworker by smearing cat food on it, after repeatedly telling him not to use his personal mug

Text excerpt about a man’s Hawaii mug stolen repeatedly by coworker and serving cat-food-flavored coffee in return.

Text describing a man’s coworker repeatedly stealing his Hawaii mug, leading him to serve cat-food-flavored coffee.

Open tin of cat food on a dark slate surface, illustrating cat-food-flavored coffee prank involving coworker’s Hawaii mug.

Image credits: alexanruiz / Freepik (not the actual photo)

The man’s coworker constantly uses his mug, he despite being repeatedly asked not to take it

Text about man using cat food to stop coworker from stealing Hawaii mug, involving cat-food-flavored coffee prank.

Text excerpt describing coworker’s reaction to cat-food-flavored coffee after stealing Hawaii mug repeatedly.

Text on screen describes a quiet conversation about how gross it is when people use each other’s stuff.

Man in kitchen holding nose with disgusted expression, reacting to cat-food-flavored coffee after mug theft.

Image credits: andreypopov / Freepik (not the actual photo)

The man smears cat food on his mug and leaves it in the office kitchen, his coworker uses it and gets sick

Man drinking coffee from paper cup after coworker steals his Hawaii mug multiple times at the office.

Text on white background reading The mug’s back on my desk now. Still smells like victory.

Image credits: ColoradoGuy303

The mug-thief is humiliated when coworkers start avoiding him because of the smell and he starts using paper cups after the incident

The OP (original poster) is just a regular employee, holding onto a small but cherished souvenir from his Hawaii trip: a bright blue mug, featuring a volcano design and his name lovingly branding it like a middle school lunchbox. It lived peacefully in the communal kitchen, until Mark came along.

Mark, the office mug bandit, is a man who, when politely asked to stop using someone else’s personal mug, responds with the corporate world’s most toxic catchphrase: “It’s just a mug.” Oh Mark, sweet, Mark. You don’t know what you’ve started. But rather than throwing hands or emailing HR, our OP played the game.

Over the weekend, he prepped the mug like it was part of a Food Network challenge, except instead of a garnish, it got a generous smear of canned cat food under the rim and sealed in a bag to marinate. Yumm. When Monday morning came, Mark fell for it.

By lunch time, the office smelled like something that crawled out of the dumpster behind a sushi restaurant. Coworkers were gagging and Mark looked like he was about to cry. He dumped the mug, left early, and has since downgraded to paper cups. The mug? Proudly perched on its rightful owner’s desk, with the scent of justice still lingering in the air.

Blue Hawaii mug with an erupting volcano design sitting on a wooden surface, personalized with the name Eric.

Image generated by Bored Panda using ChatGPT

To find out more about this story, Bored Panda reached out to the poster for some comments. He told us that since the whole HR situation, his dynamic with Mark has been “legally distant.” They mostly exchange communication via email, and their in-person interactions are limited to occasional non-verbal acknowledgments near the office copier.

We asked the poster if Mark ever confronted him or mentioned the mug incident. The poster shared that instead of addressing it directly, Mark escalated things by going straight to HR. He even filed an official complaint, accusing the poster of something he dubbed “psychological mug warfare,” using a slideshow entitled “Mug justice?” to make his point.

We wanted to know if this was the first time Mark had taken something that wasn’t his. According to the poster, this was not his first offense. Apparently, HR had previous reports, including one where he allegedly took batteries from an emergency supply kit and justified it by saying they were part of his “bonus package.”

We asked the poster if anyone suspected he was behind the original mug thing. The poster shared that people had their suspicions, but HR wasn’t overly concerned. Ironically, Mark’s own presentation ended up pointing the finger at himself. At one point, he admitted to retaliating using “ketchup and symbolism,” which led HR to pause and ask him directly if he was confessing.

We wanted to know what the vibe is in the office now. The poster said it’s been surreal—in the best way. It feels like watching a live documentary of someone unraveling by their own bizarre choices. One coworker even labeled the office fridge with a “Free Mark” sign. No one’s sure what he needs freeing from, but it somehow fits.

“Someone started a whiteboard tally titled ‘Days Since Last Mug Incident’ that resets every time Mark says the word ‘injustice.’ Turns out you don’t need to outsmart your enemies if they’re committed to destroying themselves publicly and in high resolution,” the poster shared.

Moral of the story? If you don’t want your morning coffee with a side of stink and a splash of humiliation, next time you spot a cute mug in the office kitchen that clearly isn’t yours, remember this story, and sniff before you sip.

What do you think of this story? Did the poster cross a line by smearing cat food on his mug? Let us know in the comments below!

Netizens had a field day with this story, some saying the mug thief learned a lesson he will never forget

Reddit conversation about a stolen coffee cup, featuring a coworker and mentioning coffee and a Hawaii mug.

Comment on a Reddit post about a coworker stealing a Hawaii mug, mentioning revenge involving cat-food-flavored coffee.

Comment discussing a stolen Hawaii mug with frustration over ownership and a playful insult about the mug's label.

Comment on Reddit post about man stealing coworker’s Hawaii mug and retaliating with cat-food-flavored coffee prank.

Comment text on a white background showing a user asking if someone ruined the mug for themselves after stealing a coworker’s Hawaii mug.

Reddit comment discussing a coworker stealing a Hawaii mug and drinking cat-food-flavored coffee as a prank.

Screenshot of a Reddit comment describing petty revenge involving cat-food-flavored coffee as a humorous retaliation.

User’s story about a coworker stealing Hawaii mug repeatedly, leading to a cat-food-flavored coffee prank.

Text screenshot of a Reddit post describing a programmer’s experience with coworkers stealing coffee mugs and not cleaning them.

Comment on a post about a man who steals his coworker’s Hawaii mug repeatedly, joking about the cat-food-flavored coffee prank.

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