Aggression is part of  my my education in Denver Dog Training! I’ve worked with hundreds of dogs over the past 20 years and have had tremendous success. This is an emotional issue for the dog. Example from the human side if you are afraid of flying and you need professional help you would take positive baby steps to change your emotions so you feel differently about flying. Aggressive behavior in dogs must be handled in the same way with positive methods and equipment.  Please read the story on “Tessie” on my Success storys page. Tessie turned out to be a National Fly-Ball Champion off-leash next to other dogs.  Does the method I use work? See the story!