I just randomly remembered as a kid I was trying to teach my German Shepherd to stay. He was given to us at a year of age and was very clingy and anxious. He always wanted to be with you so stay was hard to teach. What I finally did was I tethered him to a tree. I put him in a sit at the end of the rope. Then he had to stay and I only had to return him to a sit if he got up. It worked great! He learned it so fast and was amazingly reliable too. Just wondering what everyone else thinks of this.