suicide belt training?
In first grade, Miss Cenci, used a jump rope.
Nobody messed w/ Miss Cenci.
It works with dogs and in a different manner based on the same idea, in wild horses too.
Give a working dog a backback and he’ll often change his attitude and focus.
With wild horses they can be led into a stall box and sand poured in ... the even, soft pressure over the whole body at once feels good to them and enables the trainer to accustom the animal to human sights and smells without the animal kicking and nipping.