We're in NM on 120 acres with perimeter fences only. My husband, who loves horses has allowed a neighbor to have his horse here, around our house. Ruby is a 6 year old, green-broke filly who is part mustang. Here's the problem: I have virtually no experience with horses (6 trail rides total). Ruby sensed that immediately (naturally) and when I go outdoors she bothers me and the dog --we are scared to death of her. (I had no problem with the 4 arabians who were here a couple years ago). Ruby gets in my space, either by crowding me off the road or by running circles around, cutting it close. It's clear she has no respect for me. Have been told all I need to do is use a whip or stick and wap her when she gets too close. I'm thinking it's best for my safety to have the owner move her to an adjoining property. I'm over 60, have severe rheumatoid arthritis and osteoporosis or I'd want to work with this poor horse. Thoughts? Suggestions? I'd really like to be told having her leave is best (though it breaks my heart, too as she is safest here, away from the neighboring horse thieves who stole her 2 companions.