I just quickly did the test for my 20 y/o boy and scored about 50/55. It says 80 is a happy and healthy pet and 8 is bad and you should end the suffering. I thought he was doing pretty bad but it's a little reassuring that even though he is starting to look very weak, apparently it isn't as bad as it looks. I think when he scores 30/40 we will let him go as he has had a very long and loving life with us and I would hate to see him suffer. Thanks for the link