There were a few coworkers at that location that were absolutely dedicated to starting rumors and pitting employees against each other. I once had coworker A tell someone that I had given their job performance a bad review (this was not true) and basically convinced the poor girl that I hated her. Coworker B confronted me about this, and when I didn't come up with an immediate response she proceeded to accuse me of ignoring her. She stormed off and got a manager. I quit that night. I emailed corporate about the incident (it wasn't the first time) but I'm 100% sure that coworker A never suffered any consequences.