When reading elementary school, I told us two stories in the book, one is Mr. Dong Guo and the wolf, one is a farmer and snake. Two story education, our kindness, just a pedantic, a kind of ignorance, a kind of self-take. So the students learned this lesson, it's a bit fascinated, then what should I do if I have a hungry person with a frost? Because of your kind, you will get the vicious return of the wolf and the snake, and become like Mr. Dong Guo, you can laugh.
