After a long workweek dealing with the same people, things can get tense around the office. So once Friday rolls around, a lot of us need to let loose and get a little weird, AKA prank our coworkers.

These jokes range from basically innocent to probably grounds for termination, but it's all in good fun! (No seriously, though, we recommend you err on the side of not getting fired.)

Are you up for the challenge? Check out 11 pranks you can play on your coworkers, but beware -- there's some NSFW language involved.

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