Thank you Dr.G for your ideas on "Lightning"'s ligament problem. The only thing is though, the injury is years old according to the foster lady that had Lightning for 2 years before coming here. Will those ideas still have any effect on healing? He is on pasture most of the day now in his grazing muzzle which he seems to tolerate very well. I know you have said they too can create stress (weight gain) but he seems okay each day when I go to put it on and wears it until I take it off- ? That way he is getting some exercise, is with his pals, and eating more naturally. Then at night I have bought 4 slow-feeder hay nets. THAT causes him great stress!! He paws at his, stomps on it, picks the whole net full of hay up and tosses it around to stomp it some more and it is mostly full in the morning. The other two horses end up leaving quite a bit of hay in their nets as well. The holes seem VERY small. Are they leaving hay because they don't want any more or can't get it out once the net starts to empty and get limp?? I went on your site for slow feeder advice and checked out a half dozen different kinds. I like the solid stationary types but they are so much more expensive (and I spent $1100.00 on 'Sam' last week). Is "Lightning" being a spoiled brat tossing his hay bag or is he actually having trouble getting the hay out? Shetland Ponies are sure a different breed from Tennessee Walking Horses!!!