What story did the king and the donkey tell?

The king has nothing to do but wander around. One day, he walked into a mill and saw the donkey being pulled. There was a bell hanging around its neck, so he asked the miller curiously, "Why do you want to hang a bell around the donkey's neck?"

The miller told the king, "This donkey is very lazy and often stops as soon as I walk away, so I put a bell on it." . As soon as the bell didn't ring, I knew it was lazy, so I immediately came over and yelled at it to work! "

The king listened and said, "That's a good idea. You are so smart! " "Before he could speak, he suddenly remembered something and said," What would you do if the donkey stood still, shook his head all the time, and let you hear the bell? "

The miller patted his head deliberately and said, "I never thought about this question. It was your idea." Your majesty, please rest assured that if this donkey is as clever as you, I can't deal with it! "