I have a major problem with getting my horse inside the trailer. Sometimes he is a little angel and walks right in and other time nothing will get him to go near the trailer. He just backs up, spins around and starts walking the other direction. He will pull you off your feet if he needs to, so it can be dangerous. Once he gets all four hooves in the trailer he is alway fine. I need him to be good at shows next summer and as I said, his behavior is dangerous so it must stop. Am I doing somthing wrong? Am I not doing somthing? Please help me if you have any advice!!!!!