1
general::
Phrase(s): 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.
McGrawhill's American Idioms And Phrasal Verbs