Question: When should a person euthanize a pet? Over the years, I've had to decide whether to medically treat my cats or euthanize them when they're seriously ill, and it tends to be a hard choice to make. Concern for the cat's quality of life is a factor, but so is the monetary cost of veterinary procedures and medication, the time required, and the emotional pain of parting from an animal that has been part of my life for many years. In my own decisions, I've come down to, "Am I keeping this cat alive because his life has value to him, or because I don't want to face losing him?" Yet in online discussions, I see comments from other people who strike me as prolonging a pet's life even when the pet is miserable, which seems horrifying to me. What is your approach to these decisions? What do you think is the best way to approach them? Is this a question of ethical principle or purely one of optional values?