Answer: A - Anti-social personality disorder is a chronic mental illness that can be destructive. An individual’s manner of thinking, perceiving situations, and relating to others is abnormal. This disorder is presumed to be caused by environmental and genetic influences. Factors that increase the risk of developing anti-social disorder include exposure to abuse during childhood, unstable family life, and losing parents to death or divorce. Confirming this diagnosis, then ensuring proper treatment in conjunction with a psychiatrist will be the first step toward helping your patient and his family control this disorder.