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Phrase(s): Burn not your house to fright the mouse away.
Prov. Do not do something drastic when it is not necessary. • Ellen: I don’t like the shape of my nose; I think I’ll have surgery to make it look better. Jane: But you can make your nose look better just by using different makeup. Don’t burn your house to fright the mouse away. • When someone pointed out a small flaw in Bob’s latest painting, Bob wanted to tear the whole painting to shreds. "Now, now, Bob," his friends said, "burn not your house to fright the mouse away."
McGrawhill's American Idioms And Phrasal Verbs