A Pan Am 727 flight, waiting for start clearance in Munich, overheard the following:
Lufthansa (in German): 'Ground, what is our start clearance time?'
Ground (in English): 'If you want an answer you must speak in English.'
Lufthansa (in English): 'I am a German, flying a German airplane, in Germany. Why must I speak English?'
Unknown voice from another plane (in a beautiful British accent): 'Because you lost the bloody war!'