I had my 11 year old stallion in with goats, and he did very well. But when I switched pastures, the goats ended up with my yearlings and gored one in the rear. It wasn't pretty, but she is fine now, however, I would not recommend any minis with any goats that have horns. Only one of our goats had horns, so we knew exactly who did it. I felt very bad, and still do, but I learned my lesson.