Management Professor and Associate Dean for Strategic Initiatives Donna DeCarolis, Ph.D., discussed how rude employees and bad behavior affect small businesses for her business commentary. Information from a recent study of managers and employees across industries suggests that behavior is costly to the firm as a whole. Employees who are victims of toxic behavior reported a decrease in commitment to the company and performance since they spend time worrying about co-worker's behavior. “Managers should not tolerate or ignore rude behavior. Appropriate social behavior should be part of performance evaluations. Offenders should be warned and reprimanded and if all else fails dismissed."