I love this video of the cat in the horse’s tail. It reminds me of my standard Poodle, Merlin. We got him when he was about a year old and he had never seen a horse before. He used to chase after me when I rode and would grab onto my horse’s tail. My instructor used to laugh until tears ran down her face.
Eventually, my very patient horse gave a very gentle tap to the mischievous dog and that was the end of tail surfing.