Years ago, when I worked at a long term care facility for the mentally ill, I had a patient who had severe bipolar disorder. Lorraine was sometimes severely depressed--sitting in a dark room peeling the paint off the wall--sometimes violently paranoid--restrained in a chair or a bed with locked leather restraints--and sometimes thoroughly delightful. I loved Lorraine. There was a time in Lorraine's cycle when she was just entering mania, when she was funny and sweet and sharp. I would get off the elevator at 11pm, and Lorraine would be sitting in the nurses station with her nightgown hitched up like a short skirt, her long legs crossed at the knee, and a cigarette dangling from her fingers like a wild, liquored up Lauren Bacall. "There she is!" She'd shout, "My little girl! My little darling!" And then an aside in a lower voice, "She's queer for dogs, you know." I am, you know. I know it seems silly to non-dog lovers, but dogs fill a primal ...