(Mental hospital AU) Cas hasn't spoken in nearly 20 years, and he's on the verge of getting thrown out of yet another mental hospital. He is disrespectful, uncooperative, and antisocial, making it very hard for anyone to befriend him. But when Dean is admitted to the hospital, Castiel's whole world turns on it's head. SELF HARM TRIGGER WARNING FOR CHAPTER 23 & ALTERNATE ENDING!