Su I'm so impressed with your devotion to your cats. I'm not that disciplined but kudos to you. My biggest fear is that my dog will bolt if not on his leash so I have total control over him at all times. One day he slipped out of his harness and ran across a busy road when he saw another dog. Just missed being hit by a car and a cart. I still get chills thinking about it. My neighbor walks her cats with a leash and sits in the garden and lets them roam. Another devoted pet lover.