THIS GHOSTLY IMAGE WAS LEFT ONE BLOCK FROM MY HOUSE. At one time A&P was the mightiest grocery chain in America. But we haven’t had one in this city for at least 40 years. It looks in decent shape. So where has this cart been hiding? There are no doubt thousands of such carts in Chain Store Hell—but what eruption brought this long dead relic to a hydrant near my house? Left as a cruel joke by some Walmart shopper in a time warp?