1960's Cold war at it's best.
US is training spy to infiltrate Russia.They teach him language,dancing,singing,drinking Vodka.After 6 months he's got no accent,he can sing many national songs and dring Vodka by the litres.
The day comes and he get's droped over Siberia.Poor guy is in the snow for 3 days.Finally makes it into the village and goes into the local bar.
He asks bartender for a shot of Vodka.After he finishes the shot,old man sitting in the corner looks at him and says" You're not Russian,are you?"
Spy turns to bartender and asks for double shot and then he sings national anthm.Old man looks at him ,shakes his had and says"I still don't think you're russian"
Spy asks bartender for a bottle of Vodka,gets it down in couple of gulps,then he sing national song and dances.
Old man looks at him " Eah,I still don't think you're Russian"
Spy turns to old man"I talk like you,I drink like you,I sing like you and dance like you,why don't you beleive I'm Russian"
Old man looks at hi and says" BECAUSE YOU'RE BLACK"
This is joke,not a political or racict statement,so don't bite my head off.