My husband, a U.S. Coast Guard pilot, was on an exchange tour with the Royal Navy in England.
Everyone who drove through the base's gates was required to hold an official ID card up to the windshield for inspection by the guards.
As a friendly competition, my husband's squadron started flashing different forms of ID, such as a driver's license, just to see how far they could go to fool the busy guards.
The winner? The fellow who breezed past waving a piece of toast.