Aussies are working dogs. They need a ton of exercise. They're beautiful and I understand why people want them but they are not good dogs for everyone. My uncle bought one years ago named Mister Charlie (Grateful Dead) and he got him for all the wrong reasons. My uncle lived in Sarasota and he was a fat old sports fan and an avid reader who spent most of his days in his recliner watching sports and reading books and not getting this dog the exercise it needed. It got very territorial and bit a bunch of people, myself included. Eventually it bit the animal control officer making a home visit after a neighbor complained and had to get put down. It was pretty sad but it was hard to see the dog as the problem and not my uncle. I think he could have been a great dog in the right circumstances.