Schutzhund is a great training regimen. It's not rea protection training, imo. The "bite work" is choreographed. Its just a great system to train a dog. The only reason I did it was because of my dog's breed. I trained dogs my whole life without an issue, but American Bulldogs have a reputation (dog racism) and we had a young child. It turns out that both my dog and I enjoyed the training. It really wasn't necessary, though, because she was the smartest, sweetest, most stable dog I ever owned.