As we are learning to ride and train, we sometimes encounter big problems that seem to appear very suddenly, and we wonder: what happened??!! Everything was going fine, and all of a sudden, the horse is acting up. Maybe he suddenly stopped and refused to go forward, from one day to the next. Maybe he started turning around for no discernible reason. Maybe he started to rear or buck. In some cases, the reason is pain-related. But in some cases, the extreme reaction is the final stage in a longer process. The rider kept making small mistakes with her seat and aids that the horse didn’t like. So he started to react in small ways at first. Maybe he pinned his ears in certain situations, or he lost some impulsion, or he became more crooked, or he inverted. But when the rider didn’t notice the subtle warning signs and didn’t change what she was doing, the horse had to send out larger and larger signals. Some riders only get the message when they get bucked off. But by that time they have missed hundreds of smaller warning signs over a period of several months. And once the horse is so annoyed that he bucks or rears, the problem has become very serious.