Churchill was a great one for coming up with a snappy comeback. Prior to WW I, when he was spearheading a movement to modernize the Royal Navy, he was accosted by an irate, old-line admiral, who growled, "SAAR! You are MEDDLING with the TRADITIONS of the ROYAL NAVY!!"
To which Churchill replied; "Sir, do you know what the traditions of the Royal Navy are? I can tell you in three words; rum, sodomy, and the LASH!"