The dog doesn't go near the door when we are home. He only paws at the door when we are away. We had the window open and the screen closed and he pushed the screen right out of the frame, spline and all. I have replaced the screens and the splines on the screen door. I cannot seem to find the smaller size spline for the windows. And that is where I think the problem is, the window splines are worn and are not gripping as well as they should. As for the screen door, putting the metal pet guard would work well for the lower part of the door but it would obstruct my view while driving if it were put on the top half. The dog will stand on the dash to look out the windshield and that is when he paws at the upper part of the door.