8. Showing honor to a fool is as bad as tying a rock in a sling.
9. A fool trying to say something wise is like a drunk trying to pick a thorn out of his hand.
10. Hiring a fool or a stranger who is just passing by is dangerous—you don’t know who might get hurt.
11. Like a dog that returns to its vomit, a fool does the same foolish things again and again.