Narcissism is associated with selfishness and other negative traits like a grandiose sense of self-importance, a constant need for admiration and a lack of empathy for others. So it may not be surprising that narcissists tend to have a hard time with behaviors associated with better mental health and healthy relationships, like forgiveness. But a new study, published in the Journal of Behavior Therapy and Experimental Psychiatry, explores how people with a particular type of narcissism automatically respond to interpersonal offenses by measuring their tendencies to seek revenge, avoid the person who offended them or act in a benevolent manner.