5. Go very slowly when dealing with anxiety-related behaviors. The best way to rehabilitate an aggressive dog is to change how he perceives the stimuli that make him anxious. Do this by slowly showing your dog that the thing he fears is no longer scary. This technique is called desensitization. If your dog is guarding the couch, food bowl, or front door, show him gently that there is another way to feel that makes him happier and more confident. For example, shower him with attention when he is on the floor, and not on the couch. Show him that good things happen to him when you approach his food bowl, because it means you'll be adding more delicious food.

Teaching obedience commands is relatively easy to do, but changing a dog's negative behaviors and perceptions is not. Therefore, it's important to enlist the help of a qualified trainer, who can help tailor a treatment plan for your dog's particular problem. Avoid trainers who use harsh methods or advocate choke, prong or weighted collars. And remember, positive training equals positive results. It might take a little longer, and require more time and patience on your part, but the positive changes you'll see in your dog are worth it.

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