When I have to call animal control, I always make the dog seem more vicious than it may be. A neighbor's pit bull mix kept getting off its chain. It was a sweetheart dog around me. I petted it a lot whenever I would do the neighborly thing and put it back on its chain (dogsdeservebetter.org). One time just became too much for me, though. Another dog from the 'hood was out at the same time, and they met. The pit bull raised its hackles at it, but there was no fight, I think because the other dog was bigger and more alpha. When I called animal control, that pit bull had become a raging maniac, but luckily, the other dog "got away".
In my town, they will always come for vicious dogs. They may or may not come if Fifi is out running loose. Yes, I exaggerated. Maybe I even lied.But those people finally surrendered that pit bull and the puppy-machine Lab they had also chained up in the back yard. Those dogs must be having a better life than they were. Even if they were ultimately euthanized, it's better that a pit bull mix who regularly breaks his chain is in the hinterlands than here as a possible menace. Don't get me started on the Labrador who was always pregnant by any mongrel who happened by.
Karen