He ambles up, plunks his oxygen on the counter. I notice his veteran's cap when my eyes flick up to greet him. He unfolds his money with long, careful fingers. "You like the music?" He asks me. Pachelbel's Canon in D plays softly on the radio. I do, and I tell him so. "Pachelbel," He says, half to himself, then adds, "Only thing I don't like about him is when you've heard the first few measures, you've heard it all."