A South Carolina school principal has made headlines for moonlighting as a shelf stacker at Walmart to help support his students, 90 percent of whom live below the poverty line. The principal initially told no one that he had taken a second job. Henry Darby, the principal of North Charleston High School, who works three night shifts a week, firmly believes he hasn’t done anything to warrant the accolade. For him, his students’ needs is all the motivation he needs to keep going. “These students, they are the best of the best,” Darby told Today. “We love them dearly.” Initially, Darby opted not to tell his Walmart manager, Cynthia Solomon, about his daytime career as a school principal, reported Today. Solomon said, “Even before we knew, there was something special about him.” Darby said he gets “a little emotional” thinking that some children are “sleeping under a bridge, or a former student and …