I had a horned sheep get her horns stuck inside a cow's eye socket. Yes that happened. I saw the cow making strange faces, opening her mouth wide like yawning. I thought 'what the hell is wrong with that cow', then she turned around and i saw she had a sheep hanging out of her eye.
I ran up and pulled the sheeps horns about 5 inches out of the cows eye socket, convinced that the cow had lost an eye. Nope. The eye popped right back into place, and she was fine. [ I learned to separate cows and sheep after that ].