Your story reminded me of when I was 14 and went to visit a family that had Shetland ponies. Their daughters were about 12 and 14 and when they found out I could ride decided we needed to go out riding on the ponies. So we put bridles on the ponies and they tell me to get on. The ponies were so tiny! So, we go into the woods and there is a very slim trail through the woods. I was told that this is a dirt bike trail that their brother and their friends use. The older girl give me instructions, "So, once the pony starts running it won't stop until it gets to the end of the trail. Hang on tight and keep your head down because the ponies run under every low branch trying to get you off."Oh my gosh, that reminds me of a farm I worked on which had a pair of donkeys, and my friend and I would race them! Whoever didn't fall off first won. All they have to do is stop and you slide right over their non-existent withers. The races were always really short.