Dr. Peter McGraw (twitter.com/petermcgraw) heads the Humor Research Lab (HuRL) at UC Boulder, and he joins Matt, Andy and returning guest Baron Vaughn (twitter.com/barvonblaq) for a special episode devoted entirely to the science of why things are funny. Peter's Benign Violation Theory is a robust, empirically testable explanation of humor in all its forms, and it's the basis of Peter and Joel Warner's upcoming book The Humor Code. For more information on Peter's work, visit humorcode.com and humorresearchlab.org.