if he acutally LIKED other horses that might be something to think about. he's lived out in a pasture setting alone (for all intents and purposes - shared a fence line with the actual herd of horses but was in his own dry lot [desert, no grass]) with hay in front of him most hours of the day and still would crib. doesn't matter, he's gonna do it. *sigh*unfortunately I think you're right. Maybe if he could live in a herd, out 24/7, fixed herd structure......maybe........