Learn how to harness the power of worthwhile reinforcement to build safe, friendly behaviours in aggressive dogs. The positive training based, Constructional Aggression Treatment (CAT), as described in Turning Fierce Dogs Friendly, has proven successful for many pet owners and trainers around the world. As a functional approach to changing aggressive behaviour, it offers a humane alternative to desensitization, counter conditioning and distraction procedures. CAT typically produces long-lasting results in far less time than any positive treatment available, without the undesirable side-effects that are common with punishment procedures. The ultimate outcome is a once-aggressive dog that is now friendly.