Join Date: Nov 2016
Location: Lansing, Michigan
If this were my horse, I would look for someone to help me. Put a rope halter on her with a large metal clasp on the lead rope. Have someone holding the lead, prepared to knock her under the chin with the clasp the second she begins to show any sign of turning to bite when you are lifting her leg. It is pretty easy to get a really good hit on their chin with a quick flick downwards with your wrist on a lead rope with quite a bit of length in it. I would be tempted to do this as soon as she puts her ears back or even looks at the person lifting her feet in the slightest.
I personally prefer to not have to focus on lifting a leg and also having an eye on the horse to make sure I can correct their behavior at just the right second. If you can ensure getting a well-timed elbow right to her nose, you could do that also, but I don't like risking having the horse get a bite of my bum.
How is she with the farrier lifting her legs? Does she turn to go for him?
If so, this method would be good to use when the farrier is there. Let him/her know what your horse has been doing, and give him/her a warning that you are going to correct it, HARD, so that it is unexpected when the horse pulls their leg away and moves. Hopefully you can fix this habit before the farrier comes, but just in case, most farriers are okay with you correcting your horse as long as you warn them before doing something.
Many times when the farrier is at my barn and I'm holding my horses or other peoples horses, the first time the horse acts up I will tell the farrier "hey farrier, X is doing Y. Next time X does Y, I am going to do Z, is that okay with you?". If they prefer that I do not do Z, then I ask "what could I do instead to ensure your safety and make sure the horse is behaving appropriately?". If the farrier knows that she has been showing interest in biting, they likely have the experiencing to hit her muzzle, hard, or knock her in the belly with one of his tools (some people don't like this, but if my horse is well-deserving of correction, a well-timed belly hit is fine with me).
Toofine - 1998 Half Arabian
Minnie - 2013 Morgan