Dog aggression. Human aggressive American Staffordshire Terrier

Dog aggression is always a huge behavior problem for the dog owners.
In this video you will see human aggressive and dog aggressive dog named Graf. He is young American Staffordshire Terrier.
He attacks any person who comes closer than 2 meters to his owner, but that unwanted behavior itself is not a problem.
That is a good example of how the lack of leadership and guidance can create such problems as aggression in dogs regardless of the age and breed.
Remember, to be the leader in human world for a dog is hard load to carry, it always leads to stress and unstable state of mind which can turn in any type of issues in dogs.
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