We have an energetic and sometimes strong-willed 18 month old Boston Terrier named Betty who calls our house her home. Betty is a great dog, but was starting to jump up and try to initiate play with our 7 and 5 year old children by nipping/biting. She had been through a basic obedience class and we felt that the methods learned in her class just weren't helping. Jack gave us the tools we needed to "talk" to Betty in a language, and by rules, that she understands. Her behavior improved quickly and we are very happy with the results! I would highly recommend Jack's services to any dog owner!