"And that's why I'm not off practicing by myself." He ran a hand through his hair.
"In Danaean culture, before negotiations with another tribe begin, the First Warrior and his Brother in Arms must ritually demonstrate their loyalty to each other through this dance. I guess the idea is that a person who isn't loyal even to his own comrades isn't trustworthy enough to negotiate with. It's like a test of honor."
in which I make up silly reasons for required dancing
"In Danaean culture, before negotiations with another tribe begin, the First Warrior and his Brother in Arms must ritually demonstrate their loyalty to each other through this dance. I guess the idea is that a person who isn't loyal even to his own comrades isn't trustworthy enough to negotiate with. It's like a test of honor."