In one case, Genghis Khan came the wife of the prince, to release her family.
Genghis Khan said:
- Here's to you are your husband, your son and your brother. I will let only one who choose?
Without hesitation, she replied:
- Explain to me why?
The woman said:
- I can find my husband, I will be able to give birth to a son, but the brother can not create.
After hearing Genghis Khan dismissed all three.