In September 1931, Kennedy started attending Choate, a prestigious boarding school in Wallingford, Connecticut, for 9th through 12th grade. His older brother Joe Jr. had already been at Choate for two years and was a football player and leading student. He spent his first years at Choate in his older brother's shadow and compensated with rebellious behavior that attracted a coterie. Their most notorious stunt was exploding a toilet seat with a powerful firecracker. In the next chapel assembly, the strict headmaster, George St. John, brandished the toilet seat and spoke of certain "muckers" who would "spit in our sea". Defiantly Kennedy took a cue and named his group "The Muckers Club", which included roommate and lifelong friend Kirk LeMoyne "Lem" Billings.