I have not had time to read all of the posts, so sorry if I am repeating. I will read them all tomorrow and probably post again, I just have a few things that I'd like to say now.
I have read the dog whisperer book and really recommend it to anyone who is having problems training their dog, no matter what kind they have. I think he is a man who really understands the creatures he works with, and how their minds work. I think if people took the time to listen to him when he talks about why dogs get into the behavior patterns they do, we would all be a LOT less frustrated with our babies when they pee on the carpet, or seem to do things "out of spite"
I have used mostly his methods in training Paddington, and I think it's done wonders! People where ever we go can't believe that I've been training him less than two weeks. Today we did a little "show" for my grandma at the memorial day picnic, and even I was amazed at what he has picked up. Even potty training has gone SO well! And I think it is because I have been following his methods. Then again, I also think I have a genius dog (but which of us on here doesn't!!!

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I really like what he has to say about the owner being in control of everything the dog has access to, and that the dog has to earn priviliges. It sounds harsh to a lot of people (my mother chides me for being mean to my dog because I make him sit before I give him his food) but it really makes sense when you look at it from a dog's perspective. Not only is it in a dog's instincts to work for his food and survival, but it reminds him that I am the one in control.
I've never seen his DVD's, but plan on getting them with my next paycheck, and I have only seen parts of his TV show, so I am only basing my opinion on his book. As a behavioral psychologist, I love his methods, and even if you don't agree with them I think it is still worth it to read his book just to understand what it is that you don't agree with. Either way you get a better understanding of how you want to train your dog!
-O