I recently adopted a one year old female Australian Shepherd. She is, in nearly every respect, the perfect dog. My wife and I looked at many different breeds before adopting, and decided that an Aussie was a good dog for us due to their intelligence, temperament and size. We were aware of the amount of exercise Aussies require and thought it wouldn't be a problem because I already take a three or four mile walk everyday. I was really looking forward to having some company on my trek. Not so. Whenever it's time to go for a walk, I put on her leash and she sits down, resisting and pulling, sometimes even just lying down on ground. Then, if I remove the leash, she gets up and starts following me down the street. Unfortunately, we live in a busy neighborhood, so just walking her without a leash isn't an option. I've tried coaxing her with treats, being playful and getting her excited, nothing works. As soon as I put the leash on her, she stops dead and resists. We are about to try a choke chain. I should add that before we got her, she lived with a guy who never took her for walks. He had a large, fenced-in backyard and would just let her run around out there. I'm out of ideas. Can anyone help me? We are afraid she's not getting the exercise she needs. Thanks in advance for your time.