I share in the sadness of your loss. Although the grief you feel is overwhelming; know that you made the best decision for your cat. All of us who have experienced a pet's unconditional love for us know and understand your feeling--we've been there. Humane care and consideration for our pets is our direct obligation. The life and death of all creatures is also our moral concern and responsibility. Even the Bible states that man is the steward of all the animals.