During the late 1950s I was a summer mailman in Rockford. The job changed my life forever -- for the better -- but there was a challenge: the dogs. Once a man on a porch saw me coming down the public sidewalk, and – pointing to the hound at his feet – called out, “Don’t worry. He won’t bite.” “Already did,” I said. Moments before, the creature had raced down, bit me on the leg, and trotted back to assume an innocent pose. Another time, I felt an electric shock running up my leg before realizing