Fred was going to school. When he passed a park, he saw a man sawing a big branch from a tree.

But the man didn't believe him, and said angrily, "Go away, you little thing. It's none of your business."

Fred could do nothing, so he left. He didn't go far before he heard something crashed. He rushed back and found the man lying on the ground.

"Hi, it is dangerous." Fred shouted. "After you cut off the branch, you will fall, too."

Fred asked some men for help. They carried the man to the hospital.