Once upon a time, there was a little boy named Tim. Tim was playing outside with his favorite toy, a red ball. He loved to throw it up in the air and catch it. One day, while playing, Tim saw a filthy puddle of mud. He thought it would be fun to drop his ball in the mud.
"Should I drop my ball in the puddle?" Tim asked his friend, Sue. Sue thought about the question and said, "I don't know, it might get dirty." But Tim didn't listen and dropped his ball in the puddle anyway. The ball became very filthy and dirty.
Tim tried to clean the ball, but it was too dirty. His mom saw the filthy ball and was upset. She told Tim that he couldn't play with the ball anymore because it was too dirty. Tim was sad and wished he had listened to Sue. Now, he couldn't play with his favorite toy anymore, and it was all because he dropped it in the filthy puddle.
