okay. What I want to know is what breed is he? His confirmating looks like a fjord and they are typically a thick little horse. Granted I do agree he is a bit over weight and ought to have a vet look at him not just be starved and worked to death like some seem to be sugesting. Some breeds of pony/horse always get very think winter coats, some horses are built thick like drafts. I hate to jump to the conclusion that this horse is ill or uncared for becouse of his breeding. It sounds like th OP is doing the best she can by both the horse and it's owner. the only other options she has is to buy the hose and get the vet out herself or to take a chance at the horse being "sold for Glue" if she kicks it out and the lazy owner's parents get rid of it. I hate how on this forum a simple question turns into a "Your beating/killing/not caring for your horse right" board.... 1 comment with helpful hints should suffice ESP if you have no idea what the horses back ground and history or what the owner is curently doing about the problem. We have enough to stress over in our own lives to grip about some one elses to, don't we?
"It's a lot like nuts and bolts - if the rider's nuts, the horse bolts!" ~Nicholas Evans