In my corporate days I shared a cubicle wall with a guy from marketing. He would wander in a few hours after I started work, say his hellos, and occasionally try to recruit me for some sort of pyramid scheme involving artificial gems. After he made his presence known in the office, he would take some documents in his arms and head down the hallway, down the stairs, through the lobby, across the parking lot, into his car, and all the way home. He lived near work, and he'd stay home all day under the cover story of being in meetings.
A few years later I learned that he went on a drinking and drug binge, got in a fight with a buddy in a hotel room, and strangled the fellow with his belt. My coworker went to prison and wrote a book about his experience. It was a good book. He alleged that the victim was a big guy and it wasn't easy to kill him. The relatives of the victim allege that the deceased was about the size of a lawn jockey. I don't know the truth, but I do know that my coworker had a background in marketing not karate.
So who was your worst coworker?