Originally Posted by iridehorses
Yes you can and you should. Any time you are near a horse you are training him. Allowing him to perform an unacceptable behavior is training him that it's OK to do that - and it never is.
Oops, no, no. I didn't mean it that way. What I was trying to say is that it could just be part of his personality, like smrobs said previously. I mean, it's not like you can totally change a horse's personality with vigorous training.
I suppose my wording wasn't very good.
And like you said in your post, your horses need a good warming up before you take them out. That's part of their personality, they're spunky! Yes, proper training and reprimanding when necessary is vital, as everyone has been saying here. In no way did I mean it is OK to let him continue this behavior.