The workplace brings together a variety of personalities that need to be in a highly functioning professional relationship in order to achieve success. People’s work behavior affects everybody else’s productivity and the overall working environment. Unfortunately, sometimes employees may contribute to the development of a toxic working atmosphere. Unprofessional and bad behavior can be damaging to the company’s professional success. There are a few signs that a person represents a problem at the office. Being overconfident means that employees overestimate their own abilities, therefore they don’t deliver great results despite their self-assurance. Lacking good communication skills in a work environment may be critical to employees’ professional success. Listening to other colleagues’ opinions and suggestions can be a strenuous process for a person who is unconcerned with other people’s viewpoints. Since emotional intelligence plays a great part in maintaining smooth communication, it is safe to presume that those employees are less open to discussing new ideas. Finally, the constant gossiping about co-workers and managers can undermine a person’s credibility and integrity. Moreover, it is a strong indicator of a toxic work environment.