I agree. I hike with my dogs off leash every day on the trails in the hills near my home. If it's not at least an hour and a half, Ziggy, my Labmix will shoot right by the car, in pursuit of yet another jack rabbit. When I blow the whistle and call him, he eventually crosses the path in front of me, so I know where he is within a square acre of sage brush. In the two times I have lost track of him, I have found him by my car, waiting for his ride home.