What a scary story. Everything bad that we have nightmares about. Horse stolen, used for testing, and almost sent off to slaughter. It's a wonder that the mare survived all the "breeding to test for diseases."
This is why I am conflicted about rescues. And why I never get mad at the rescues who go to auctions, go into the kill pens, and buy these horses. That mare is alive today because someone was willing to do all the work to save her.