When was I was young my family moved a long distance with two pets, a cat and a dog. My mom said that cats can try to run off to find home after a move so we had a cat collar with a long leash to hold her while we were unloading the trailers. I heard my Australian Shepherd bark twice on the back porch. Abby NEVER barked unless something was serious. I ran back there and my cat had run around a chair many times and then jumped off the chair with not enough room on leash to be on ground and was hanging there choking. When I rounded the corner Abby was trying to chew through the leash. Best dog ever. Both cat and dog lived long happy lives.