It’s mid-September and many of us are now back in the swing of the school year; we are surrounded by the sights and sounds of new and returning students, not just in class but all across campus. Among these students at many colleges and universities are the conspicuous members of fraternities wearing their T-shirts advertising last year’s luau, Greek week, or membership in a recent pledge class, or maybe the slogan that was popular on shirts when I was in grad school: “Freshman Girls. Get ‘Em While They’re Skinny.” At many schools rush season has...