Patrick Lyons stands in the middle of a Dumpster, staring at a can of meat. "I don't know who eats this stuff," he says. He chucks the can aside and keeps on digging. His ball cap is slung low over his face; it connects to his long, thick, brown sideburns. He digs down and -- jackpot -- he's found what he's looking for. He holds three small potatoes and a yellow bell pepper up in the air. He's one step closer to a complete meal. He places his bounty in a cardboard box and keeps foraging. "One time a lady...