Oprah is a wealthy person, pack leader of the human world. So many see her as the dominant one, as the authority figure. The way I view her energy, seeing her on TV, is a very calm, quiet energy. You need, in order to gain control, higher energy than your dog.

We're the only species who follow unstable leaders. This is true - it has little to do with America - around the world, pack leaders are unstable. Animals don't follow that.

In America, dogs are viewed by their names first, breed second. And dogs live behind walls. It's an unnatural point of view.

Aggression is not a breed thing. It's a state of mind, and it comes from how the human is with the dog. There are four levels of energy, regardless of the breed: low, medium, high, very high. The idea is to get a dog in your same level or lower than you.

When I go and work with people, I never say, 'Your dog is changed for the rest of its life.' It's like a diet. You've got to maintain a discipline and ritual in your life to keep a certain figure.