OK, got one of those livestock scratching brushes but am unsure where to put it.
The most available place is on the outside or entry of a run-in shed. However, it’s basically a prickly thing that would be at approximate eye level to be convenient for scratching. So, should it not be placed where horses might be more likely to inadvertently bump into it while going in or out of the shed?
Other locations would be outside on the side of the shed, in a more out of the way place where horses would have to seek it out. Otherwise, I’d have to put in a post somewhere, with concrete.
There are limited options elsewhere because the wood fence is hotwired.