My hairdresser told me this this aftenoon.
She has a couple of quarterhorses and a miniature mare.
A while back she acquired a miniature stallion, but he turned out to be mean.
The miniature horsey hated the quarterhorse boy. Every chance he got, he jumped up onto the quarterhorse's back and bit him!!!
I realy can't imagine a 30 inch tall horse jumping up onto the back of a 15 1/2 hand horse. so wish she could have gotten a video of it.
She finally had to sell him because he was breaking down fences to get his enemy.