In "The Office," many awkward moments arise due to Michael Scott's intense hatred of mild-mannered HR representative Toby Flenderson.
While most of us would never resort to Michael Scott-level shenanigans, many people can relate to having a workplace nemesis.
"Nemesis" may sound like an intense word - but a nemesis doesn't have to be an over-the-top, evil supervillain. It can simply refer to a longtime rival.
Jason Hanold, the founder of executive and board search firm Hanold Associates, told Business Insider that such contentious work relationships typically stem from jealousy.
"Most sophisticated people in a workplace setting can identify when one is jealous of another," Hanold says. "Jealousy is the root cause of most workplace grudges and bad behaviors. Jealousy of relationships with peers, bosses, their teams, as well as jealousy of performance, promotions, or even offices or work area locations. Many of us are surrounded by great people, and unfortunately, by a petty person or two."
If you have a work nemesis, you probably already know. If you're not sure, here are some signs that you've got an enemy in the office, along with a few tips on dealing with the situation.