The wicked Wit of Winston Churchill

From Time Magazine, April 10, 2006, page 15:

When Lady Nancy Astor - the first woman member of Britain's House of Commons - told Winston Churchill during a fierce debate, "If I were married to you, I'd put poison in your coffee," Churchill replied, "If you were my wife, I'd drink it."

More memorable quotes and anecdotes can be found in this useful little book.