Ethel is cute looking, we have never encountered a dog like sheep with all this weird behaviour. Our other dog and the family dogs are just as mystified as we are by her. As you say about your dog, Sheep leaves us in no doubt she is highly intelligent and a fast learner, actually the most like her we have seen was on a dog behaviour tv show called dog borstal. It sounds aweful but euthanasia has come up at the vets as she is so manic sometimes. This is why ive been led to post online to see if anyone has any ideas.