The guys finally get around to answering some viewer mail, and a non-dentist writes in to say she is tired of brushing AND flossing and only wants to do one from now on, and asks which one she should choose. Mike than puts Josh on blast for having a root canal, and then Josh gives his justification for why he is too busy to get his teeth cleaned. In his own dental office. Where he employs dental hygienists. Who clean teeth for a living.