Aggressive 10 mo German Shepherd

by Anna D
(Hazel Green Wi, USA)

My GSD is aggressive to anyone who enters the our house. We have to lock him up. He barks and growls, will follow the guest around acts like he wants to bite them. It doesn't matter if the guest is here for a short while, or 3 days. It doesn't matter if they are children or adults. He is loving and gentle with the immediate family. When we go for walks he is scared of people we pass by and wants to be on the far side of them. He is good with other animals. However, he plays a little rough with them and sometimes crouches down and acts like he is waiting to attach the small dogs. I love my GSD but I don't know how to fix this behavior. I am afraid he is going to hurt one of my nieces or daughters friends when they come over. What can I do to correct this???

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Apr 20, 2014
Administer a motivational correction
by: Adam G. Katz

Hi, Anna:

Your problem is that your dog didn't get a motivational correction for exhibiting the aggressive behavior. It will happen, again. Plan on it. Be prepared, and have a way to administer a motivational correction, when it happens-- so that your dog knows in no uncertain terms: This behavior will not be tolerated.

I go into more detail on how to do this, in my book. In addition: Start teaching him obedience training exercises, and make him do behaviors he doesn't want to do. (Ex. Down-stays around distractions and making him stay down). That builds dominance/leadership and makes your corrections more meaningful.

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- Adam

Adam G. Katz is the author of, "Secrets of a Professional Dog Trainer!" -- which you can find at

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