Rudeness in the workplace isn’t just unpleasant: It’s also contagious. Encountering rude behavior at work makes people more likely to perceive rudeness in later interactions, a University of Florida study shows. That perception makes them more likely to be impolite in return, spreading rudeness like a virus.

“When you experience rudeness, it makes rudeness more noticeable,” said lead author Trevor Foulk, a doctoral student in management at UF’s Warrington College of Business Administration. “You’ll see more rudeness even if it’s not there.”

View the rest of this article on the American Psychological Association website.