Left paddle and Right paddle had played Pong for as long as they could remember. The game was fun, but the basics of the game were always the same.
One day both thought and planned and brought in a friend who was a programmer. He introduced a "beginner mode" option. When it was ready to be tested, they eagerly selected the option and immediately both paddles became so large they reached from top to bottom. They started a game, but gave up when no one could score.
Lesson: Sometimes it isn't as much fun when something is too easy.