Chad Haag considered living in a cave to escape his student debt. He had a friend doing it. But after some plotting, he settled on what he considered a less risky plan. This year, he relocated to a jungle in India. "I've put America behind me," Haag, 29, said. He now lives in a concrete house in the village of Uchakkada for $50 a month. His backyard is filled with coconut trees and chickens. "I saw four elephants just yesterday," he said, adding that he hopes to never set foot in a Walmart again. His debt is currently on its...