I Ya, The Great Cook
His master said one day, 'I have the greatest cook in all the world. Because of him, I have tasted every flavor known to man except human flesh.' Hearing this, I Ya went home and butchered his own son, cooked his flesh, and served it to his master, so that his master would lack nothing that I Ya could give him.
The moral of the story? "A true servant has children only to better serve his master."
Twisted isn't it? This story is taken from one culture explored in Xenocide. As Card explores alien races, he also explores how alien humans can be at time, and what some people will do in the name of their beliefs.
A good read.