Joke

An enemy decoy, built in occupied Holland, led to a tale that has been told and retold ever since by veteran Allied pilots. The German "airfield", constructed with meticulous care, was made almost entirely of wood.
There were wooden hangars, oil tanks, gun emplacements, trucks, and aircraft.
The day finally came when the decoy was finished, down to the last wooden plank. And early the following morning, a lone RAF plane crossed the Channel, came in low, circled the field once, and...
dropped a large wooden bomb.