Two very impressive and thought provoking posts from Janggut and Kiya.
The issue of "Playing God" is one that I feel that I can only keep thinking about, without probably ever fully solving. Every parent has to "play God" some of the time as they make decisions regarding the care and upbringing of their children, both in regard to how they teach them and with the level of medical care they approve.
Some religions will not even allow certain positive modern medical interventions, (blood transfusions, etc ) as this also seems to them like "playing God". For me (not being particularly religious, despite my Dad being a priest) it's a matter of considering each case on its merits and hoping to make a humane and right decision.
On the cat subject, I currently have an 18 year old cat who seems to be "on the edge". She seems happy enough but is showing many of the signs of getting near the end. Of course, I'm hoping for a peaceful 'natural' death, but with my previous 2 cats it ended with visits to the vet to help with their end. <img src="/ubbthreads/images/graemlins/disagree.gif" alt="" />
Kiya, I very much admire your determination to stand by your friend. I hope that your loyalty is never subjected to such a test, but she is very lucky to have somebody like you to give such support.