If there is evidence of this guy's malicious intent for breeding dogs, I'm sure someone can bring a case against him in court to have his rights to breeding and/or owning animals taken away.

That's what the law is for. If the neighborhood sees him with animals, they can just pick up the phone and call the cops or animal control since he's violating a court order not to have dogs.

If he keeps it up, he'll probably eventually get jail time. It becomes a public safety issue so it's entirely in the rights of the people to see this stuff done.

Firstly, if I lived in that town with a person letting their vicious dogs roam about freely like that, I would avoid being within 30 feet of that house. If I had to pass by the place to get to somewhere, I would find another route. As someone who has had the displeasure of getting bit by a big, vicious dog before, I know how severe it can be. I'd try to give him the idea of investing in an electric fence. It's pretty fucking stupid to breed killer dogs in a neighborhood with children and other people closeby without some kind of safeguard against the dogs doing some real harm. There's no reason that I can think of that they should be free to run around, anyway.

Even though I'm not a big fan of the idea of an electric fence (I think it's a little inhumane to dogs), in this case it would be a necessity. I'd try to talk with him about the risks the dogs pose by being outside, and the idea of getting one.

As far as vicious dogs that are unleashed? Throw out good ol' self-defense.

Like in the case of the first story. Someone on foot can carry around a weapon for self-defense, whether they planned on doing something about the dogs in the first place. Gun or no, there are tricks you can pull to get the drop on a dog. Sounds cold, but I'd do this for certain if I was in this case and was raising a child in the area.

Besides, if he brings up a suit against the person for killing his dog in self defense, you can pin several things on him. Lack of leash may not be a problem in said city, but he did breed killer dogs. Self defense sounds quite valid in that instance. "HE KILLED MY DOGS. THEY WERE INNOCENT."

Or, like in the original post, poison some meat with something and throw it on the yard/region they patrol. Dogs have a sixth sense that tells them what's good and what's bad to eat. But sometimes it's rather hit-or-miss if'n ya get my drift. Hell, a collie we had up until I was 5 or 6 died by poisoning.

Of course, I'm quite the brute. I've killed more than a few wild animals. I'd have noooo qualms killing some dangerous mutts raised by a reckless owner.