We worked with Miguel at Sam ivy. In January I hurt my back when my boxer pulled me over. Four weeks after Miguel came to help, our dog barely looks at other dogs now. Two things I especially liked. One, Miguel never touched our dog, we did it all under his guidance. Two, I was very hesitant about the e-collar and was dreading it. Miguel taught us it is just a tool in our kit bag of tools. Since working with our boxer and the e collar, we have actually only used it 5 times. Now she understands what we expect from her the problems disappeared. Give this a try. We are certainly glad we did. Now it is again fun to walk her and we don't have to run the other way when she sees other dogs! I would hire Miguel again in a minute.