My pet without hesitation (really none). (Why saying a human being would be more important, whereas the money you're using to feed a pet could save some human beings for example) Not about pets. - your brother is a serial killer, he killed more than 10 people already and don't want to listen to you and wants to kill more people. He will never kill someone you know. Would you call the police (= he will stay forever in prison or will be executed) ? - you can save your innocent sister or 1 billion people, will you let your sister died to save 1 billion strangers ?