If you have owned a horse for more than 6 months then you probably have seen some sort of weird or bizarre training method or device used on a horse by a horse trainer. I remember about 30 years ago one well known horse magazine did a front page article on training horses using a crane! I think it was called sky hook training or something like that. I thought that the horse industry had progressed beyond that type of off the wall training but no, it is still around.
Someone else has taken the time to document the cruel devices and methods used to train harness horses and dressage horses in Europe.