What is the main idea of the section titled “Playing Rain or Shine”? President Hoover took great pride in having invented a game. President Hoover took great pride in having invented a game. President Hoover taught groups around the world to play Hoover-ball. President Hoover taught groups around the world to play Hoover-ball. President Hoover played Hoover-ball nearly every day and in any kind of weather. President Hoover played Hoover-ball nearly every day and in any kind of weather. President Hoover was often required to cancel games because of his official duties