Kleptomania  =  
http://www.minddisorders.com/Kau-Nu/Kleptomania.html read more  
reading this gives me chills... and makes me sick 
Kleptomania is a complex disorder characterized by repeated, failed attempts to stop stealing. It is often seen in patients who are chemically dependent or who have a coexisting mood, anxiety, or eating disorder. Other coexisting mental disorders may include major depression, panic attacks, social phobia, anorexia nervosa, bulimianervosa, substance abuse, and obsessive-compulsive disorder. People with this disorder have an overwhelming urge to steal and get a thrill from doing so. The recurrent act of stealing may be restricted to specific objects and settings, but the affected person may or may not describe these special preferences. People with this disorder usually exhibit guilt after the theft.  
Detection of kleptomania, even by significant others, is difficult and the disorder often proceeds undetected. There may be preferred objects and environments where theft occurs. One theory proposes that the thrill of stealing helps to alleviate symptoms in persons who are clinically depressed.