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3. Fool me once, shame on you; fool me twice, shame o

Fool me once, shame on you; fool me twice, shame o

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Fool me once, shame on you; fool me twice, shame on me.

Prov. After being tricked once, one should be wary, so that the person cannot trick you again. Fred: Would you like a can of peanuts? Jane: The last can of peanuts you gave me had a toy snake in it. Fred: This one really is peanuts. Jane: Fool me once, shame on you; fool me twice, shame on me.

See also: fool, on, shame