I own a mentally retarded cat. I'm not joking. I need advise on how to keep her happy. She's really sweet and I want her to think she's a normal cat, but after living in a shelter her entire life (3 years), I just don't know if that is possible. Any advise?I own a mentally retarded cat. I'm not joking. I need advise on how to keep her happy. She's really sweet and I want her to think she's a normal cat, but after living in a shelter her entire life (3 years), I just don't know if that is possible. Any advise?