From The Grey House:
Keith gave him a blank stare, and then his eyes grew very wide indeed. The shriek he let loose was louder and longer than any noise either of the other bouncers had uttered. Vincent smiled mildly as Joseph stepped forward to unlock the shackles. Keith kicked at him, and a Blitzkrieg stepped forward to hold the young vampire against the wall. There was no fighting after that. Fully fed, Keith could have struggled, but he was a day without blood, and the Blitzkrieg was well fed and happy. It was a new moon; she was in full control. Keith did not stand a chance.