Margaret, you're so lucky to have Chows!!! I just love them to bits, and I loved watching your videos!!
I had a Chow a while back - we got her when she was three, and she was such a good girl. She had the same colouring as your Layla - brings a tear to my eye when I watch your vid... Our Ming lived over 12 years - though she had arthritis in her hind legs for some years before that...