@AJs:
I never suggested that "humanization" was the only factor in aggressive canine behavior. It has been shown, however, to have an impact if the animal is not dealt with in a manner that makes it clear where it stands in pack order with regard to humans. IMO, the best way to do this is by using the animal's own language to tell it.
It's the method I used to train my cats. Cats and dogs don't speak human. They have their own languages respectively. If we take the time to learn it, our jobs as leaders of said animals is greatly simplified. It may be as basic as making sure your dog knows he or she is lower in pack order by eating before the animal does.
I do concede it is true that some dogs, by nature of their breeding, are more aggressive than others. In these cases, treating them as if they are human is not appropriate.
AJ's human, Do you really mean body language when you suggest learning the animals language? I do agree that if we pay attention to certain body language and habits that our pets appear to have, we do develop at least in a limited sense the ability to understand when something might be bothering them, or they need something from us. Sometimes it takes a bit to figure out what they are after, but I think owners who pay attention to detail and repetitive behavior can usually figure out what their Basenji or other pet might be after. I certainly wish I could learn to speak dog. It would make my pets life and my life so much easier, and I could also earn a lot of money as an animal behaviorist or phycologist.
Jason