Singing for No Reason --I was watching an episode of House (TV show), a marathon one day just out of the blue. And one of the doctors comments that House sings for no reason. Could it be indicative of his condition? And then another doc says, I want to sing for no reason It occurred to me then, I, myself frequently break out into a riff of a song from distant memory banks. It's spontaneous and there's never any warning or indication of what song...