I recently went to visit an Australian Shepperd to help out with training. Over the phone I got the impression that the dog nips at the heels as though trying to herd people. When I talked to the owner in person the story was that when any one comes to the house the dog barks and bites at the person (including the owner). The owner said that some times she has blood running down her legs by the time she gets into the house. They have been threatened with being sued and the wife was asked if she was being abused by her husband because of all the bruises on her legs. Overall the dog seems like a wonderful dog! He is extremely food motivated, toy motivated, generally friendly, and I saw that he will choose to relax on his own in the right circumstances. He is a very high drive and has trouble relaxing despite a daily 1 1/2 hour off leash walk and frisbee in his own yard throughout the day. When I arrived he was out in the yard laying comfortably. He did not get up or bark when I pulled in. He came over calmly to see what I was getting out of the trunk then we walked up to the house together. When I got to the door the owner was like "oh so he barked at you and was biting at you the whole way up the driveway, right". She was shocked that I said no, he was very calm and he didn't do anything like that. (I'm not sure why people feel the need to leave the dog out for the trainer to see how aggressive their dog can be!?!) Anyway he seems like he could use some major boundaries, and lots of work on self control. We worked on bringing the frisbee back (no keep away/ grab the frisbee as fast as you can and get hands out of the way of the dogs mouth.) Sit and stay calmly while the frisbee is picked up and moves around to be thrown again. Touch a hand, go to a spot, down (which he didn't know yet and learned REALLY FAST!), on your side, massage/relaxing. Walking to and from the car/ running to the car. The whole time I was there I never once even felt teeth. He never tried to nip me or the owner. He did bark out of frustration at times if the game ended. The owner said she learned a lot, was very interested in clicker training and saw that she was doing a lot of things incorrectly. I was wondering if anyone else has experienced or heard of a similar experience. I am wondering if there are other things we should be working on? He seems like an amazing high drive dog. I can't really imagine him doing the things that I heard about, seeing how he was the whole time (1 1/2) hours I was there. Any suggestions? What do you think about this dog/ situation?