The Fourth Crusade was arguably the most disastrous of them all. In the year 1204 Catholics betrayed Catholics, Catholics and Byzantines betrayed one another, and Byzantine royal family members betrayed and murdered one another. What could go wrong?! I narrate the role and place of Venice in the fourth Crusade. Across the episode I also ruminate about all the Christian De-Converters we are reading about today (how to assess what they are doing), what is the difference between Islam and Christianity on the topics of being inside and outside the religious community?, and describe a recent extraordinarly beautiful trip to Northern Idaho. Come think carefully and laugh with me!