When he stepped out of his church on Christmas Day, 2011, Dan Chambers had no idea that he had just preached his final sermon at that congregation. All he knew was that he needed a vacation. He and his family were heading south, to the Texas hill country outside San Antonio. There they’d unwrap presents with family, get a little R&R, and drive back to Illinois in a week or two. That was the plan—the plan that never came to be.