I've just acquired a 2 yr old male golden to train. He has a strong retrieving desire but has never been formally worked with. No ob, ff, etc. He grabs the bumper but wants to run off and play with it, sometimes he comes back within ten feet or so and sometimes close enough for me to get the bumper. Just like a puppy would. Should I treat this dog just like a puppy and put him on the check cord until he gets socialized to me and the place doing fun drills keeping him within a reasonable distance and then begin ob? Or should I take a slightly different approach?