Not only is he claustrophobic-- he's scared of the dark and despises physical contact. When he panics, he shuts down completely and tends to hyperventilate. He is usually very violent and aggressive, but he becomes very quiet and unresponsive, almost childlike, when he is afraid. He prefers words of affirmation over physical contact. He doesn't like to show his emotions often and has put up a very convincing front, but he is unable to pretend when he feels cornered or threatened. 