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Continue to ChatPeople often recommend, "Why do you ask?" as a good conversation stopper. But that really doesn't end the conversation, it just leaves the other person sputtering for a response. I like, "You'll be the first to know.". - Emily Yoffe from https://whatsmyquote.com/quote/people-often-recommend-why-do-you-ask-as-a-good-conversation-stopper-but-that-really-doesn-t-end-the