My Coworker Used My Mug, So I Filled It With Mayo

I have always been a bit obsessive about my desk setup. My office is a beige, windowless cubicle farm where every day feels exactly like the one before it. The only thing that keeps me sane is my favorite mug. It is white ceramic with a cartoon cat wearing oversized sunglasses, and it has been my companion through every spreadsheet and budget meeting for three years. I guard it like it is made of solid gold. I wash it by hand, I dry it carefully, and it always occupies the same spot on the left corner of my desk. But regularly morning, everything changed. I had been in a meeting for about an hour. When I finally walked back to my desk to grab a sip of lukewarm coffee, I stopped dead in my tracks. My mug was not on the left. It was on the right. And there was a crusty, brownish-red ring of dried liquid around the rim that definitely was not mine. Someone had used my mug without asking, and they had left it in a state of absolute filth. My blood began to boil instantly. It was a violation of the unspoken desk code. I looked around the office, trying to scan for suspects, but everyone seemed to be typing away as if they had done nothing wrong. Then my eyes landed on Mark. Mark was the type of guy who acted like the entire office floor was his living room. He walked around with no shoes on sometimes, he stole lunches from the communal fridge, and he had a habit of grabbing whatever was nearby to drink his afternoon tea. He was currently sitting at his desk about ten feet away, staring at his screen with a smirk on his face. I did not need a detective to tell me he was the culprit. I spent the next twenty minutes pacing around my cubicle, trying to calm down. I knew I needed to do something, or this would never stop. Revenge needed to be subtle, personal, and effective. I walked to the breakroom, my heart hammering against my ribs. I opened the communal fridge and pushed aside a few tupperware containers of sad-looking leftovers. There, sitting on the middle shelf, was a massive, economy-sized jar of mayonnaise. An idea formed in my mind, and honestly, it felt like divine inspiration. I walked back to my desk, picked up my mug, and gave it a thorough scrubbing in the sink. I made sure it was sparkling clean, almost like I was prepping for a tea party. Then, I returned to the breakroom with the mug and the jar. I filled the mug all the way to the brim with the thick, white, gloopy mayonnaise. I used a plastic knife to carefully smooth the surface of the mayo until it looked like a perfectly frothed latte. It was disgusting, but it was also a masterpiece of deception. I carefully walked the mug back to my desk, balancing it with the precision of a waiter carrying a tray of champagne. I placed it in the exact spot it usually sat. I even pulled my chair out a little bit so it looked like I had just stepped away for a quick break. Then, I sat in the cubicle behind mine and waited. I did not have to wait long. About fifteen minutes later, I heard the heavy, familiar tread of Mark’s boots on the carpet. I held my breath. I peeked over the partition just enough to see his shadow approach my desk. He did not even look at the mug. He just reached out, grabbed it by the handle, and took a massive, confident gulp. It was a loud, aggressive swallow. For a split second, there was silence. Then, I saw his entire posture shift. His eyes went wide, bulging slightly as he processed the cold, gelatinous mass of egg and oil sliding down his throat. His face drained of color and then quickly shifted into an unnatural, sickly shade of lime green. He stood there for a heartbeat, his hand trembling as he held the mug. Then, the gagging started. It was a wet, heavy sound that made my own stomach turn, but I felt a strange sense of satisfaction. He slammed the mug down so hard I thought it might crack, but it held steady. He did not even look back at my desk. He just turned and bolted toward the kitchen, his hands clutched over his mouth as if he were trying to keep his lunch from hitting the floor. I waited until I heard the bathroom door swing shut before I stood up. I walked over to my desk, picked up my mug, and took it to the kitchen to wash it one last time. I felt like a weight had been lifted off my shoulders. I was calm, collected, and ready to get back to my work. When Mark finally emerged from the bathroom ten minutes later, he looked absolutely shattered. He walked back to his desk with his head down, refusing to make eye contact with anyone. He did not come near my desk for the rest of the day. In fact, for the rest of the year, he acted like my cubicle was surrounded by an invisible electric fence. Whenever he had to walk down my aisle to get to the printer, he would literally veer off into the hallway to avoid being anywhere near my space. He never touched my stuff again. Every time I looked at my cat mug sitting on my desk, I felt a little boost of pride. It was a small win, but in the monotony of corporate life, it felt like a total victory.