In Home Dog Training, Puppy Classes, Potty Issues, Aggression, Socialization, Any Dog, Any Problem! Lifetime Service Guarantee! Bark Busters is the world's largest dog training company having trained over 500,000 dogs since 1989. We train you and your dog in the privacy of your own home. This allows us to focus our training on the specific needs of you and your dog. Our training teaches you how to communicate with your dog in a language they understand. You will be communicating with your dog in a natural and non-physical method that puts them at ease and makes them more secure in their environment.