The Discipliner, otherwise known as the Ring of Folly, is a cursed ring made to humiliate the most careless, skilled, and egotistical students of arcane magic. They see this as a 'gift' instead of punishment of a disapproving teacher. After this experience, the teacher hopes this student becomes more humble and careful. This item appears in Baldur's Gate and Baldur's Gate II: Shadows of Amn.