Tony trained our two Jack Russell Terriers (5 and 4 years old) who had gotten aggressive with each other one day after having grown up together since they were puppies and did everything together. Since training (almost two years ago) we have not had another episode of aggression. We are able to walk the dogs in public without them barking at people or animals and pulling on the leash. In fact we are able to run them in our yard and driveway without leashes (as people, dogs, cars and squirrels pass by) and have them obey commands. Our seven year old kids can even run them without problems. It has allowed us to again enjoy our time with the dogs and given us tremendous peace of mind. We would highly recommend Tony and just wish we had sent our dogs to him much sooner.