Dirty Dishes
One of the most irritating scenarios in any workplace is when people don’t wash up in the kitchen. In the best case, it creates a mess that’s uncomfortable to be in. But usually, it means that somebody else must clean if they want to use a cup or dishes. It’s frustrating because they shouldn’t have to do this.

This person took matters to the next level by calling out a messy colleague. They wrote a passive-aggressive note that we can see above but the ending is amazing. It’s like they stuck the knife into the perpetrator before viciously twisting it. We don’t blame them, yet it’s a harsh and humiliating lesson (via Reddit).