When I was first starting to learn about horses and horsemanship, my teachers all had rules that I was meant to follow. I was to mount from the left of the horse. I was to lead a horse from my right. I was to ask a horse to pick up its feet by pinching the chestnut. When there was a disagreement with a horse I was to always make sure I won. If a horse turned its tail towards me I had to always correct it. A horse should not be allowed to stop when it had a bathroom moment.