Jimmy led Prince back into his stall for supper and smiled when he saw Joey slip into the barn to follow along as he did the evening chores. It was becoming a habit, this shadowing by the boy, and Jimmy loved it. They had a little game they played together. Jimmy called it “Did you know?” Joey always started it off. “Did you know horse’s teeth never stop growing?” “Like a beaver?” “Yup. Did you know that horses have the biggest eyes of any animal?” “Hmm,” Jimmy said. “They do seem bigger than a whale’s eyes, I’ll grant you that.” When Joey had run out of the day’s newest horse facts, it was Jimmy’s turn. “Did you know that a horse’s whiskers are sensitive?” Joey peered at him. “Are yours?” Jimmy rubbed his chin, feeling the roughness of a five o’clock shadow. “Nope. But for a horse, those whiskers detect what eyes can’t see.” Joey rubbed his chin too. “Here’s another one for you. Did you know that a horse’s lips are loaded with nerve endings?” The boy wiggled his lips, pondering that fact. “Last one for the day. Did you know that a horse’s hooves are shock absorbers?” Joey…