OK, my friends we now have (occasional) ball playing AND find the toy! Mars' appetite is great, he is back to prancing (when the sun is shining), and he is very talky. We're really grateful for those good things.
David is concerned that he tires more quickly than usual and heart damage is one side effect of Adriamycin, so we'll see his regular vet Monday for a check-up.
thanks everybody-thanks a lot,