Hiring a fool or some stranger passing by is dangerous—you don’t know who might get hurt.
A dog eats food. Then he gets sick and vomits. Then the dog eats that food again. It is the same with a foolish person. He does the same foolish things again and again.
When a fool tries to say something wise, it is the same as a drunk person trying to pick a thorn out of his hand.
God will reward or punish every person for the things that person has done.