It has to be the British - German ones.
Ground (with quite arrogant impatience): "Speedbird 206, have you not been to Frankfurt before?"
Speedbird 206 (coolly): "Yes, twice in 1944, but it was dark...... and I didn't land."
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!"