A simple solution, since animal control doesn't care, is to shoot the dog. Make sure you use a rifle from a distance (scope and laser sights). The dog's owner, who really is the one who should be shot, will get the message (next time, maybe it's him!). Read online about how people go nuts and wind up shooting people over this. The city doesn't do anything until it gets out of hand. Typical worthless government employees. I love animals, hate some of their owners who should never have animals.