"There's nothing more physically exhausting than a sense of failure."

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This time I particularly loved because it came from a real experience with my grandchildren. Having them alone alone for the first time for six or seven days and going "Wow, this is exhausting," because when you're not around little ones for a long time, you forget about how much work that is. So I came in and started writing the story that became this movie ['PARENTAL GUIDANCE'].

— Billy Crystal