I spent some time in Miranda's stall that evening with her (with her haltered - she's OK when haltered and doesn't get defensive), rubbing her head and ears. She was somewhat disturbed by being in the stall, and would have preferred to be out. I wanted her to spend time in there so it wouldn't be so scary. I may move her outside tonight. For now, we have a strict "do not enter" policy for her stall and paddock - I'm the only one who can go in. This brings home to me how difficult it is to work with a horse that has serious behavioral problems for whatever reason - abuse or otherwise - and how careful one has to be in those circumstances. I'm not worried about handling her, but I need to be always aware and alert to what's going on.
I like the mare, and want her to continue to make progress in dealing with her fears. Our Norman (now retired in Tennessee) also had serious issues - he had been seriously abused, we believe, and could be very aggressive. But he was much smaller than Miranda. We never cured him completely of his behaviors and defensiveness - particularly in an enclosed space - but he was comfortable enough most of the time that he wasn't much of a problem. I hope Miranda can get to this place - not only do I not want any people to be injured, but I want the horse to feel safe and comfortable as well. I don't know if we'll get there, but I'll keep working on it for now.