In the December 2005 issue of Western Horseman, champion trainer and clinician Terry Myers, Ostrander, Ohio, shares his groundwork exercises and safety strategies to teach your horse how to stand still - and not pull back. He recommends teaching your horse to tie using a large, truck-style inner tube tied to a secure, deep-set post along a smooth, flat wall. Teaching your horse to tie with the inner tube helps your horse know to move forward. The inner tube will give, then pull your horse back into position faster than your own hands can correct and reward. Your horse won't feel the constant resistance of the rope; instead, he'll feel pressure, then release when he moves forward and stops pulling back.