Not always true. A dog, unlike a gun, can and will act on impulse from time to time, no matter their training and that is especially true in the terrier breeds, , and more apt to do so when in a pack environment.
The common link is ‘control’.
You leave your gun unlocked and accessible to others,
you are an irresponsible owner.
You let your dogs roam loose, like the dogs in this story,
you are an irresponsible owner.
I know it is tempting to call for “ban” when threatened, but I bet, there are hundreds more incidents of accidental gun discharges killing people than pit bulls killing people. By the way, I hate pit bulls... they’re ugly and dangerous. But I do not want them banned for either of those reasons, because both of my criticisms of them are subjective.
An irresponsible owner should be sued till bankruptcy and tried for murder for their dogs’ misconduct, just like they would face the music for their guns’ misconduct.