The joke
A foreign diplomat, looking for directions, pulls up at a bus stop where two Americans are waiting.
“Entschuldigung, koennen Sie Deutsch sprechen?” he asks. The two Americans just stare at him.
“Excusez-moi, parlez vous Francais?” he tries. The two continue to stare.
“Parlare Italiano?” No response.
“Hablan ustedes Espanol?” Still nothing.
The diplomat drives off, extremely disgusted. The first American turns to the second and says, “You know, maybe we should learn a foreign language.”
“Why?” says the other. “That guy knew four languages, and it didn’t do him any good.”