I understand it. Dogs love to hang outside of moving vehicles. They're hooked on it! Far out. However, I saw a small dog today standing on a driver's door sill with the window fully opened, and half of its body outside of the vehicle. On a 45 mph road. It wouldn't have taken much for that dog to fall onto the road. I didn't like seeing it. My question: Do you allow your dog(s) to have their head or body outside of your vehicle?