OK, so Beau is doing great on walks, only an occasional lunge at a rabbit, etc. He does great in stores and at training, walking in the park is very good as well. Our yard is still problematic if he is not on a relatively short leash. He will chase every leaf and rabbit in sight. Once he started to be so reactive again, he forgot/doesn't want to play. I can't get him to chase balls or frisbees or simply tug in the yard. I've tried treats for fetch, etc--nothing seems to work for more than a minute. The only thing he wants to do is chase things/fence run if off leash. On leash he is fine but our yard is small which means walking him around and around and around the perimeter: no exercise, no fun for either of us. So I guess I am asking: how does one bring back play? And how do I fade the short leash? I really want to be able to play with him outside and also, eventually, let him out alone.