Well we have 2 mares and a gelding. We went to feed them this morning and come to our suprise the neighbors jack got loose again, but this time made it's way INTO the pasture. Looks like he's been there for a while as they were all relaxed in the pasture. Don't know if He got to the mares or not. One I wouldn't be so worried about, but my mare I am. She's 28+.. Vet said if she foaled again it would probably kill her. I'm hoping she finally stopped going into heat, but everytime I think that, BOOM she's in heat again.