This is an awesome FREE video. Pay close attention, listen 2-3 times, as this will make life with your dog so much better and easier! Ty talks about the “one-free-command” system and it’s a great formula for obedience. Pay special attention to the difference in the rule for destructive or disruptive behaviour, like jumping up, chewing belongings, etc. By the way, the solution for an aggressive dog is obedience training… very intense obedience training. By intense, I don’t mean heavy or angry or loud or impatient, but consistent, on-going, never-let-up obedience training. If you slack off, so will the dog! In dog obedience training, your dog is either getting better or getting worse; there is no plateau!