How to Deal With a Know-It-All When Communicating We use this approach to deal with the other side’s expert witnesses in court. You can use the same approach outside of court to make your point and handle opinionated know-it-alls 🙂 Share this:TwitterFacebookLinkedInLike this:Like Loading... Author: Mitch Jackson I'm a California trial lawyer trying to fix the world one client, cause, and digital interaction at a time. View all posts by Mitch Jackson