give one enough rope and he will hang himself

[give one enough rope and he will hang himself] {informal} Give abad person enough time and freedom to do as he pleases, and he maymake a bad mistake or get into trouble and be caught. - A proverb.

Johnny is always stealing and hasn't been caught. But give him enoughrope and he'll hang himself.

- Often used in a short form, "give oneenough rope".

Mother didn't know who robbed the cookie jar, but shethought she could catch him if she gave him enough rope.