When a mixed martial arts studio moved in across the street from literary scholar Jonathan Gottschall’s office, the timing couldn’t have been better. Gottschall was in a mid-life crisis; he was out of shape and his academic career was stalling. So joining the gym was personal, but he was also fascinated by these questions: Why do men fight and why do we like to watch? Tuesday, Gottschall joins Doug to talk about his experience in the cage, and about violence and the rituals that contain it.