This podcast episode explores the history and significance of pie throwing in comedy. It traces the origins of pie-ing back to vaudeville in the late 1800s and discusses how it became a staple in silent films. The hosts also explore the unwritten rules of pie throwing in comedy, as explained by Buster Keaton. They discuss the practical considerations of using shaving cream instead of real pie filling and highlight notable pie throwers such as Fatty Arbuckle and Mo Howard of the Three Stooges. Finally, they discuss the history and evolution of pie throwing as a form of protest, from its early days as entertainment to its use as a political tool.