This is a story. It is said that when Dayu was harnessing the water, people were homeless and got together to camp. Food was scarce at that time, and they had to be wary of all kinds of wild animals. Because of the flood, many crabs climbed ashore, and people were afraid because they had never seen such animals. Fire was used to drive them away, and some crabs were burned to death, giving off a very fragrant smell. Although people are hungry, they are afraid of poison and dare not eat. A man bravely stood up and tried to eat crabs, and found that crabs were not only nontoxic but also delicious.

This is the story, with a clear meaning and the courage to innovate.