"Toward the end of the run of 'The Patty Duke Show,' Patty Duke became anorexic, her weight dipping to an alarming 76 pounds. She began to experience mood swings and became known for her erratic and eccentric behavior. She developed an obsession with safety deposit boxes and maintained a great number of them in several banks, using them to store such mundane items as Kleenex and shopping lists."
[Duke, who once announced plans to enroll at UCLA with the goal of becoming a psychiatrist, later wrote a bestseller entitled A Brilliant Madness: Living with Manic Depressive Illness.]
[Famously difficult, Patty Duke once threw a clock at a studio executive during an argument.]