The love for retrieving is, like the love of jumping, almost always inborn in dogs, and is both a liability and an asset. In all probability Jock already gets a big kick out of chasing a thrown ball and bringing it back to you on the run, so that you can throw it for him again. But he does this only when he happens to feel like it and until the game begins to pall. He must be taught to take it seriously, as he now takes his jumping act.
To do this select a spot as secluded as possible and use it as a permanent training place. Jock will soon learn to consider it a schoolroom rather than a playground and expect to stick to his lessons when you take him there.
Now order him to sit and take from your pocket some object he can carry easily, like a soft ball, an old glove or the like. One very successful professional trainer advises a corncob, since it is light, easily held in the mouth and can be broken to any desired size; another suggests a piece of rubber hose.
Whatever you choose, rub it in your Meanwhile Jock is still sitting like patience on a monument so you’d best get back to him. Give him a pat on the head for his obedience, show him the corncob, let him sniff at it to make sure it’s yours and make a bluff at throwing it. The chances are he will be instantly alert, sense sport ahead and maybe jump to his feet prepared to chase the corncob when you really toss it away. If he does this, stop feinting and order him to sit. But right here you must be very tactful or he will become disgusted and lose interest. Don’t keep him waiting long. Watch your chance, catch him when he is sitting correctly and throw the cob, at the same time giving the order “Go on, Jock! Fetch!”