Vanessa and Casper explore the theme of regret in chapter fifteen of Harry Potter and the Sorcerer's Stone. They discuss the eccentric behavior of centaurs, celebrate Neville's burgeoning bravery, and try to justify Filch's ongoing sadism in this chapter. Throughout the episode they return to the question: why do we regret things that are out of our control? This week's voicemail is thanks to Kevin Bianchi.