I have a 4 month old Australian Shepherd and he hates to be brushed! He has never had a bad experience, he just doesn't like it. As soon as he sees the brush he runs and as soon as I touch him with it he runs away. I have tried to put his leash on and he just bucks around and goes crazy. I have tried several different brushes and they don't make a difference. The groomer at Petsmart recommended that I bring him in for regular brushing to get him used to it. Does anybody have any ideas?