Ok, here is a completely hypothetical ethical question for you that will have no real life applications. Let's say that someone continuously dogsits his parent's ancient Jack Russell terrier while they vacation. This dog has no quality of life anymore, is completely blind and deaf and limps significantly wherever he goes, but his owners refuse to do the humane thing and put the dog down because they are so attached to the dog and also probably see the dog as a metaphor for their own aging process and mortality. The dog can only consume rice and chicken stock at this point in his life. Would it be moral or ethical for this son to save his parents the agonizing decision of euthanasia while they're gone on their 2 week cruise and go all Candy's dog in Of Mice and Men, and tell the parents the dog died peacefully in his sleep? Or what that condemn this son to the burning torment of hell for all eternity?