I had a gelding that showed riggish behaviour. He mounted the mare(who was being flirty) We kept them separate whilst she was in season. He still stood at the hedge wanting to be with the girls.
He acts like a stallion - difficult to lead, holds his head really high, doesnt like me taking my mare out the field, strikes out with his front legs (not at me, but in a hissy fit when im taking mare out), erm...walks the fence - just generally hates it when his mares are taken away. I havent seen him mount though.
