Thanks for your input, I do appreciate it. Unfortunately, we prematurely picked out a new companion, to see if that would help, and she turned out to be not so good for Atlas and my cocker spaniel, Lady, and caused the cocker's death. We are heartbroken and hope that Atlas was not involved. Too painful a reminder right now, as Lady was with us 12 years. So, I really do think he has to go. We will stick to our cat and bunny for a while.