I don't dare teach him mine, much less unteach him his mother's.
"John March, Southerner"
George W. Cable
It was you who taught me to disdain adulation: will you unteach your pupil?
"The Last Days of Pompeii"
Edward George Bulwer-Lytton
"For the love of Mike, Carey," he went on, "tell me how to unteach that screeching thing of Bessie's, or we won't get a scene today."
"The Film Mystery"
Arthur B. Reeve