Bobby Copley is one of nearly 1,000 Columbus janitors who may go on strike if their demands for full-time work, affordable health care, and decent working conditions aren't met. (Photo courtesy of SEIU Local 1) When a representative from SEIU Local 1 first showed up at Bobby Copley’s door in Columbus, Ohio, about two years ago, “I was about to throw her out of the house. I was totally anti-union...