1890. Adolf Hitler is a baby. You're yourself, just happen to live in a different time. You're the only person on earth to know what Hitler will become in the future. Trying to explain this to other people would be pointless, as no one would believe you. A perfect occasion comes about and you can kill Hitler while being unnoticed. Would you do it? Note: The topic is about the act now or never. Options like I'd become Hitler's mentor are out of the discussion's scope.