Nancy Astor: "Sir, if you were my husband, I'd poison your tea."
Churchill: "If I were your husband, I'd drink it."
It reminded me that a few days prior I had a customer mention another quote by Churchill that was along the same lines.
Bessie Braddock: “Sir, you are drunk.”
Churchill: “Madam, you are ugly. In the morning, I shall be sober.”
Winston Churchill; what a guy.