Proverbs 26:9-11

New International Reader's Version

⁹ A proverb in the mouth of a foolish person
    is like a thorn in the hand of someone who is drunk.

¹⁰ Anyone who hires a foolish person or someone who is passing by
    is like a person who shoots arrows at just anybody.

¹¹ Foolish people who do the same foolish things again
    are like a dog that returns to where it has thrown up.