Just as a virus spreads from its host, rudeness at work starts with one “carrier” who acts inappropriately. As co-workers react to a single nasty comment or incident, they are more likely to respond in kind. To reduce disrespectful behavior, rid your workplace of individuals who tend to instigate it. The more you allow strong, negative personalities to run wild, the more rampant the rudeness will become as others pick up on it. Document mean, denigrating or offensive actions.