I have Insurance through AEIG which I will have to read over but I think that is my business liability[horses-care/custody/control,visitors,clients,trucks/trailers during transport,barn,tack/equipment] I have a second health/medical insurance policy, through Carefirst as a self employeed person. So not knowing your policy I don't think that a medical accident at your place dealing with your horse would be covered by your liability.