Dear Old Trainer: I have a 3-year-old German shorthaired pointer, Fritz, who is trained for quail and pheasant hunting. The trainer I hired told me to keep him locked in his 20-foot run except when I take him out to hunt. When I do, he runs wild for about 15 minutes, and then is so tired out that he can barely work and wears out in half an hour or so. What is wrong with him?
