"Whatever I can do, I'll do. I would never put Pooh Bear to sleep just as I wouldn't put my wife to sleep. He's our little Lazarus." The ever-increasing importance of pets is a well-known consequence of modern living. While animals were generally viewed with an unsentimental eye on the farm, in the city they quickly assumed the position of substitute family for lonely urban dwellers. And as the <a href="http://www.nytimes.com/2002/12/01/fashion/01PETS.html">New York Times explains</a>, one (un)intended consequence of this is an astonishing rise in the longevity of pets. Just as people are willing to spend all for the sake of beloved family members, sentimental pet owners don't blink an eye forking out thousands for advanced medical treatments for their beloved pets. Not that there's anything wrong with offering love and loyalty for animal companions who have spent their lives offering unconditional love and loyalty, but such regimens of medical interventions have the nasty potential for creating more suffering than relief for sufficiently aged animals. Which leads to the question: when does love end and selfishness begin?