Give enough rope and he'll hang himself

Give someone enough rope and he'll hang himself

. Prov. If you give someone that you suspect of bad behavior the freedom to behave badly, eventually he or she will be caught and punished. Jill: I think Matilda's been stealing things out of my desk. Should I tell the boss? Jane: No; give her enough rope and she'll hang herself. One of these days she'll steal something important, the boss will find out for himself, and he'll fire her.
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