I think with all of this dwarf talk, you could take a champion halter horse in his winter woolies, in a home picture, pulled right out of the pasture, not tell his name just ask if he has any dwarf characteristics and I would be willing to bet someone would say "YES I see dwarf bla bla in him". I know everyone thinks everyone else is barn blind. But, come on! if everyones horses but our own are dwarfs, then I guess what we have is a dwarf breed and everyone needs to deal with it. It really cracks me up that every time someone is brave enough to ask, someone says yes. I have seen bent knees, domed heads as adults, big bellies with short legs, necks about a hands width long, bad bites. These are dwarfs. But come on people, every horse that doesn't have perfect conformation is not a dwarf. Not even a minimal dwarf. Minis don't need necks as long as a geraffe or thats what they would be. In my mind, if you can take a picture of your mini without anything around to define it's size and it looks like it's bigger counterparts and not a pony, then you have a mini. I would not put so much worry into something that just has to be delt with and not worried about at every turn. If your horses are healthy and you don't breed they why worry? If you do breed then just be careful what you breed and if you do get a dwarf then don't breed it, don't sell it as breed stock and try a different cross the next time you breed your mare or don't breed her again and don't sell her as a brood mare. I would also tell the stallion owner if was an outside horse you breed to. Not in an angry way. Just inform them what happened. Most people would want to know that.