What is psychological harassment? Psychological harassment is vexatious behaviour that manifests itself in the form of conduct, verbal comments, actions or gestures characterized by the following four criteria: They are repetitive*; They are hostile or unwanted; They affect the person’s dignity or psychological integrity, and They result in a harmful work environment. Sexual harassment at work is also included in this definition. What is vexatious behaviour? It is humiliating or abusive behaviour that lowers a person’s self-esteem or causes him torment. It is also behaviour that exceeds what the person considers to be appropriate and reasonable in the performance of his work. Psychological harassment may come from a superior, a colleague, a group of colleagues, a customer, a supplier. * A single serious incidence of such behaviour may also constitute psychological harassment if it undermines the person’s psychological or physical integrity and if it has a lasting harmful effect.  (10) Symptoms of psychological harassment. Much like other forms of harassment, targets will suffer: anger, fatigue, thoughts of violence, insomnia, physical ailments, stomach problems, stress, fatigue, depression, thoughts of suicide, thoughts of revenge, burn out, financial loss, unable to be productive at work, fear of going outside, anti-social behaviours. Components of psychological harassment. Mobbing also referred to by some as bullying, psychological terrorism, and organizational violence is described as a collective form of psychological violence in which many individuals unite to persecute an individual by making constant negative remarks, repeated criticism or sarcasm, intimidation, threats, insinuations, try to humiliate, circulate false information concerning the individual, and to socially isolate the individual. Mobbing is a way of destroying a person without using any physical means, a psychological war of nerves with wear the individual out tactics. A group attacks an individuals dignity, integrity, self-image, self-confidence, self-esteem, place in doubt of competence, threaten their careers, and means of subsistence. One method used to induce distress or suffering in a person is by systematically isolating them from their peers. After a few months some harassment targets can suffer from psychiatric difficulties such as paranoia, chronic fatigue, loss of self-confidence, and depression.   (4) Links. 1. Psychological Harassment -Detailed information about psychological harassment. 2. Mobbing USA -EMOTIONAL ABUSE in the workplace. 3. European Foundation -A site for the improvement of living and working conditions.