in an African society, if the ruler doesn't have a BBC, he will not be respected, as a result, his courtier that has a BBC will periodically challenge him. if the ruler managed to defeat him, he will gain prestige. if the ruler admit defeat or defeated by the challenger, he will be stripped of his title, and the ruler position will be given to the challenger
similarly when an African woman is a ruler, a BBC may also challenge her husband to a duel to be the rightful owner of her fertile womb
maybe can only be used on a county that has African slave?t has African slave?