Let’s get this out of the way first, this horse needs some friends to play with. When presented with a stuffed toy duck, the horse was a bit timid at first but then had a great time playing. It reared back on its hind legs and swung the toy around in sheer joy. It eventually threw it over the fence where a human had to step in to throw it back over the fence.
Alternate theory? Maybe the horse saw this stuffed animal as a threat and was trying to kill it? Probably not.