Has anyone advice about dd's pony who goes completely ballistic - to the point of potentially injuring herself - if she is put in a box when there are no other horses visible? If there's a horse either side of her she's fine - but if she's on her own she loses it so much it's scary, and very upsetting. She's the sweetest natured creature in all other respects - it's just this. It usually isn't a problem, she can live out, or in the indoor school if necessary - but it would be so nice to be able to help her a calm down a bit. We've tried a mirror, and it helps a bit - but not enough to make a real difference.