On Saturday, October 6, 1979, Federal Reserve Chairman Paul Volcker called a rare weekend press conference and announced a dramatic shift in how the Fed would fight runaway inflation. The move, later nicknamed the "Saturday Night Special," sent interest rates soaring and ushered in one of the most volatile periods in bond market history. For anyone on Wall Street, it was the start of a new era, and a test of nerve. Bill Michaelcheck, who would go on to found Mariner Investment Group, was in the markets as it unfolded. In this episode of War Stories over Board Games, he looks back on that weekend, what it was like to watch the rules of the bond market change overnight, and the lessons it left for a career spent navigating interest rate risk.