black & white joke

  Out in the middle of darkest Africa there's a White Missionary
living with a tribe of black fellas. 
  On day the big chief comes along and calls the Missionary into
his hut, where he's sharpening his big axe.  He explains to the white
fella that his daughter has just given birth to a white baby, and 
that since he's the only white fella for 1000's of miles, he will
be the main course that night. 
 " Now just hang on a minute, give me a chance to explain chief,"
says the missionary. "You're jumping to conclusions here. Let me 
tell you a story.  See all those white sheep out in the field and
how there's one black one amongst them."
 " OK !" says the Chief," You say nothing, I say nothing !"