Once upon a time, there was a boy named Tim. Tim liked to play ball. One day, he went to the park to play with his friends. They saw a big sign that said, "Do not play ball here." But they did not care. They wanted to play ball.
Tim had a cheap ball that he brought from home. He threw the ball high in the sky. His friend, Sam, was ready to strike the ball with a bat. When Sam hit the ball, something unexpected happened. The ball did not go far. Instead, it went up and then came back down very fast.
The ball hit the big sign and broke it into pieces. The kids were scared. They did not know what to do. Then, a man came and said, "Do not worry, kids. That sign was old and wrong. You can play ball here now." The kids were happy and played ball all day long.
