I read a book recently by Malcolm Gladwell, I've read a lot of his books so I can't remember which one it was but I think it was "Outliers" and it described how it is the way Caesar moves and not what he does with the dog that works. the fluidity of his movement, the slight tilt of his head, movements that most of us cannot replicate. I also read an article that debunked Caesar's methods with great explanations. I'm sure you can google it.