Our horse is not thrilled with our new addition, I have held them nose to nose to get her adjusted to him but and she does what I call a "smile" where she shows her teeth and raises her lips. I put the dog down and it goes in her pasture and she tried to step on him literally and he managed to move not knowing what was going on so I've tried to keep him out. The other night he was walking with me in the drive and went into her pasture and she was across the field in her "run in" and she was watching us and as soon as he was under the fence she was in a dead run to him. I managed to grab him faster than she got there! I don't know what to do, will she eventually be ok with him or will I forever have to have him locked up away from her? He's only 12weeks right now. The horse is off to the trainer in a few weeks and she'll be gone for 2-3months so he'll be much bigger when she gets back, I'm hoping that will help as well!