Zeus is extrememly fence aggressive. He will bark at anyone near our fence and let them know they are not welcomed. And if anyone goes near our gate, it really makes him mad. The way our gate is set up and our neighbors, no one can get in our neighbors gate, the neighbors can or course cause Zeus knows them. But like just a few minuts ago, a cable guy was trying to get in our neighbor's yard, without telling and letting my neighbor's know, and Zeus would not allow him. Is there a way I can correct this to some degree? I dont want to teach him its ok to have strangers in our yard but then again I dont want him to turn physco everytime some one walks near our fence, do you know what I mean?