What's your opinion about the story of the farmer and the snake?

The Farmer and the Snake A farmer saw a snake frozen stiff in the cold winter and felt sorry for it. He picked it up, put it in his arms carefully and warmed it with his warm body. The snake was heated, and gradually recovered and came back to life. When it woke up completely, it immediately recovered its nature and bit the benefactor with sharp fangs, causing him fatal trauma. When the farmer died, he said regretfully, "I pity the wicked and don't distinguish between good and bad. As a result, I hurt myself and suffered such retribution."

Moral

Don't trust others at will without knowing their identity and whether they are sincere or not. Bad people won't be moved by your enthusiasm

We should be careful, but don't be stingy with helping good people.