It was a quiet Sunday morning in 2011 when Jeff Gannon got a warning he’d never forget. A year earlier, he and his family agreed to put their name to one of the most divisive lawsuits in Kansas history. They had gotten a fair share of negative feedback, but nothing like the man who approached him after church. “He said, ‘Do you have any idea what they can do to you? You are coming up against a system that is incredibly large and powerful,’ ” Gannon said. “He said, ‘Are you prepared for the trouble that could come your way?’” It was odd, and a bit disquieting, but even after the nameless man left, Gannon wasn’t shaken.