Americans love their pets. I’ve had five different dogs in the past 25 years, all adopted from pet shelters who have since passed on. But when our pets become older and sick, what’s the right thing to do? Do we spend exorbitant amounts of money on cancer treatments, hip replacements and other surgeries? Or do we simply let our pet go to its final rest? Do pets have human feelings, should they be treated like humans that seek to prolong life at great expense?