My 6 year old 3/4 TB x 1/4 Percheron Gelding has been put on stall rest for a few months and I'd like to know of some of your ideas of what you've done to break boredom. My horse doesn't show the usually signs of boredom (pacing, chewing, kicking, etc.), instead he sleeps all day. He looks sedated. What can I do to entertain him??