One April morning in 2013, I was at school, at my desk, reading The Boston Globe, when I noticed a small item about a boy from Revere, the city where I live and teach, who had been mauled by two Rottweilers the evening before. The seventh-grader was in critical condition at Massachusetts General Hospital. I thought about that article all day.The news reported that Brandon and a friend had ridden their bikes to a trucking company with high fences and two guard dogs, Bella and Sonny.