I have done this. I would recommend having a situation where the equine facilitator is different than the therapist, though. In my case the therapist was both. She was a skilled horse person who became a therapist, but was better as a horse person and not very experienced as a therapist. I've read where there is usually a two person team--facilitator and therapist. The facilitator goes through the work with you and the horse, and you go back to the therapist to process the experience. I think that gives you a better chance at having a great facilitator and a great (or at least, competent) therapist. It's expensive, btw. Horses are incredible relationship guides. I can see where, in the right situation, it can be really helpful.