Seth Harding grabs a two-handed rubber sword, adjusts his helmet made with electrician’s tape, and starts to teach. "Try to block her sword with the base of your sword."“Why aren’t you wearing shoes?” I wonder.“We’re peasants.”“En garde!” Seth yells. The battle begins. He is bringing light to the Dark Ages.At 7, when many kids figure they might be firemen, Seth announced he would be a military ...