Former actor and funnyman and one-time talkshow host Charles Grodin just wrote a book calledIf We Only Knew Then....Learning From Our Mistakes. So what are some of his mistakes? Well, we might just ask him that at his appearance at the Armonk Library at 8 pm on November 10th—as per this flier distributed all over up in Westchester!—but in the meantime, we have a few ideas.