Walking through Union Square I was accosted by a grubby guy, maybe mid-twenties, who offered to buy a cigarette off me. Usually I’d say no and be on my way but he already had a dollar clutched in his dirty fist. I said fine, dug in my pocket and produced an American Spirit in exchange for his crinkled George Washington. I started to walk towards the subway. He trotted after me, and asked if he could get some change back, like fifty cents. I looked at him in disbelief. Like I’m a walking bodega? I said no, clutched the dollar and started off again. He followed and said just forget it, thrusting my cigarette back towards me. I stuck it behind my ear and handed him his money back. Astounding.