Andrew has led a turbulent life. As a young child, he skipped school more often than he attended. When he did attend, he had frequent behavior problems, and often got into fights with other boys. He was finally expelled from school altogether after stabbing another student in a high school class. Since then, Andrew has not held a job for any length of time. Soon after his expulsion, he began supplementing his income by breaking into homes and stealing whatever he could get his hands on. However, he appears to feel no guilt about his behavior. Although he has never been in a committed relationship, he has several childrenwhom he never sees, due partly to the fact that he frequently moves from town to town. Despite these characteristics, Andrew is a colorful and entertaining person and has a certain charm. If asked, he will tell you that he is quite happy with his current lifestyle.

What mental disorder do they have? Explain. What is a treatment?