I had a 2 year old Schnauzer/Shih Tzu mix that I obtained from a rescue facility. At the time, I couldn't understand why anybody would leave a great dog like that at a shelter... until somebody came to my house. She bit my visitor! Actually, she bit 7 visitors over the next few months. She also would almost go insane at the sight of another dog anywhere on "her" street. I was desperate as I was sure it was just a matter of a few months before I would start hearing from somebody's lawyer. I called Bark Busters. Ms. Price came out to the house and spent a morning with me and Bowser (yeah, I know: odd name). That was the LAST TIME I had a behavioral problem with her. Suddenly she caught on to the concept of walking on heel. She no longer defended the street or even my house. She was friendly with visitors and incurably inquisitive. I took to walking her without a leash and simply used voice commands to control her. Amazingly enough, I could stop her from chasing a cat simply by telling her "NO", though I had to do it before she got a full head of steam. After all, she was a terrier... anything that moved was potentially something to chase. But she had no violence in her any more. Even when she caught a cat it was just to play. I had to put Bowser down a few months ago at the age of 10 because of a neck injury and I miss her tremendously. Nobody in my new neighborhood can believe that she was the dog I described from so many years ago. She was so well behaved. The amazing thing was this complete turn around was from one session! Even though I was offered lifetime services, I never needed them. Bowser was an absolute joy once we came to an understanding as to who ran the pack.