From The City Who Fought, by Anne McCaffrey and S.M. Stirling [1993, Bill Fawcett & Associates; ISBN 0-671-72166-6]:
"[...] You also have no manners."
"Yah, that's true," Joat said complacently.
"You needn't act so smug about the lack," Simeon cut in.
"Why not?" Joat asked. "Lots of way-neat stuff you can't do if you've got manners."