Join Date: Dec 2008
Location: Southeast Texas
Horses can certainly be persnickity. My gelding, Biscuit, doesn't have a mean bone in his body, but his body is FULL of "pickin'" bones. Our other gelding, Sarge, is the dominate horse but he is very patient and tolerant . Biscuit runs over to him, rears up, bites him on the hocks, the neck the back...blah blah blah. Sarge gives him the shove off look - Biscuit choses not to see that signal until Sarge lets him have it. Sarge rarely has a mark on him and Biscuit is always sporting a cut, a bite mark, hair gone. If I didn't know better, I would think Sarge was just being aggressive with him.
I did board my first gelding Red at a place that turned him out with the barn managers NASTY mare. OMG she was a nasty piece of work and kicked him him the ribs hard enough he flinched when touched there for 6 months.
If you feel the other horse is aggressive ask they not ever be turned out together. It could be just the pecking order getting settled or you could end up with major vet bills.