A group of us were camping last week at the beach and we woke up the third morning to a flat tire on one of the trailers. Seems a mare with busy feet had pawed the tire stem during the night and flattened a tire on my neighbor's trailer. We decided to jack up the trailer and fix the flat and while we were at it, rotate the other tires so the valve stems we at the top of the tire to prevent the mare from pawing them again. Just a thought on how to avoid a flat while camping it you tie at the trailer and your horse has busy feet. Happy trails.