An elderly American tourist arrived at French immigration at Paris's Charles de Gaulle Airport and began fumbling for his passport. The French official quickly grew impatient. "You have been to France before, monsieur?" he asked in an unnecessarily aggressive tone. "Yes, but it was a while back," replied the old man, still rummaging in his bag. "In that case," continued the official, "you should know to have your passport ready for inspection." "But the last time I came to France I didn't have t…