Every fan of Harry Potter has envisioned themselves as belonging to one of the four houses of Hogwarts. Ask any fan and they’ll tell you. For myself, I know I am not courageous enough to be Gryffindor and so I’ve always identified with Ravenclaw; not because I am particularly drawn to characters from Ravenclaw — such as Luna Lovegood, Cho Chang, or Prof. Flitwick — but because of their emphasis on academics. For a guy...