But have you had training on how to handle horses, all the training in the world on a horse, does no good at all, if owner/handler does not know what they are doing.
Horse is acting like it is because it knows it can. Plain and simple. Doesn't have any anxiety more than likely. Just doesn't want to do something and has discovered you can't make it.
Respect on the ground also comes in to play at feeding, leading, haltering, even entering a stall can quickly show that a horse doesn't respect a human.
Horses make me a better person.