A missionary was sent to live with a tribe in the jungle. He stayed there several years, teaching them to speak English, and how to read and write. He also taught them the christian ways of the white man, and he expressed to them that adultery and fornication was an evil sin.
One day, one of the tribal women gave birth to a white baby! The chief of the tribe demanded an explanation from him! The missionary says "It's an albino! A natural occurrence, just like that black sheep over there!"
The chief looks perplexed for a moment, he says "If you say nothing about the sheep, I'll say nothing about the baby!"