Doberman pinschers, rottweilers, and German shepherds topped lists of dogs some considered dangerous in the not-too-distant past. These days, pit bulls often make headlines and it’s rarely good news. If it isn’t about an attack on a child or a shooting by police, it’s a tale of neglect or abuse. The heat of such reports has forged a frightening image of the pit bull as having a hair-trigger temper and a lock-jawed bite. But pit bull advocates and some experts say the dogs get a bad rap. They say the dogs are not inherently aggressive, but in many cases suffer at the hands of irresponsible owners drawn to the dog’s macho image who encourage aggression for fighting and protection.