Once upon a time, there was a stubborn little boy named Tim. One day, he went for a walk with his mom. They walked by a big tree and saw a small pebble on the ground. Tim picked up the pebble and put it in his pocket.
As they walked, Tim's mom said, "Be careful, Tim. The ground is wet. You might slip." Tim nodded and held his mom's hand. They walked slowly and carefully.
Soon, they saw a big puddle. Tim wanted to jump in it, but his mom said, "No, Tim, you might slip." Tim listened and walked around the puddle. They continued walking until they reached home. Tim was happy he didn't slip and still had the pebble in his pocket.
