A Swiss tourist approaches two Englishmen on a London street.
"Pardonez-moi, Messieurs. Parlez-vous Francais?"
They look at him in confusion.
"Guten Tag, meine Herren. Sprichst du Deutsch?
They look at each other and shrug.
"¿Hablas Español?"
Stare.
"Italiano?"
Greeted with blank looks, the Swiss man storms off in disgust.
One Englishman says to the other "You know, I've often thought about learning a foreign language".
"What for?" his friend replies. "That bloke knew four of 'em. Didn't do him any good."