#8: The Clean Freak
No one likes cleaning the workplace bathroom, but someone’s got to do it. Unfortunately, that “someone” might be the OP. They walked into the bathroom and found this horridly smeared mirror. Their coworker “cleaned” the mirror, and this was the final result. We find it hard to believe that someone doesn’t know how to clean a mirror. We have a feeling that this cleaning job was deliberate.
If you do something poorly, no one will ever ask you to do it again. It’s called weaponized incompetence, which sadly works in these situations. This OP’s coworker probably figured that if they were so bad at cleaning, they could get out of this mundane task in the future. It’s genius, really. Genius and evil.