So we're walking through the mall today, and there's this guy ahead of us. He's wearing a suit, and carrying a Sanity bag, and walking with a swing... one-two-one-two... like it's in time to the beat. His head's high, his back straight. I half-expect him to suddenly burst into song. A sort of strident, masculine song like "New York, New York". But he doesn't. Instead he turns around and looks at me, as if he could read my thoughts, then we go down the escalator.