I'm not mad. Except in a British sense of the word like the Mad Hatter. In that way I am mad.... from Bates Motel Season 5 Best Quotes

Mother: What kind of game are we playing tonight, Norman? Norman: It's not a game. I'm insane. Can't keep things straight. I forgot that I cleaned up. Mother: You're mad because I left. Norman: I'm not mad. Except in a British sense of the word like the Mad Hatter. In that way I am mad. But the world is full of mad people that function, many of whom are heads of state so I think I can manage running a motel.