Descendants of hunting dogs, boxers were earlier used as attack and guard dogs in WWI. Families looking for a secure environment should look no further than a Boxer. They are protective and have strong jaws and powerful bites. The last time a boxer caused a fatality was in the year 2013 on December 28 in Arizona. The boxer snapped on its owner while he attempted to break up a fight between his boxer and one of his other dogs.