we had a horse who we thought was proud cut till the day he died. gelded as a late 2y/o he was never bred, and never teased a mare- he really wasnt even that studish. but at the age of about 4 onto his death at 13, he had to be separated, because he'd try to breed mares. genuinly BREED them. he developed big stallion jaws, and even so his neck was very thin, it still was thicker then it should of been. im a firm believer it CAN happen.... :/

deano.jpg picture by CircaHL

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