Salon.com | The world press on American politics:

"Yet the Queen reportedly found Dubya charming on that occasion. Since then she has changed her mind. The Daily Telegraph reports the Queen was 'apparently less than chuffed' to learn that President Bush, invited to stay with her, brought along five of his personal chefs. "

Given that a reporter for the Daily Mirror managed to get hired for the palace staff using a false reference, perhaps the security precaution of bringing his own chefs was wise. That's what it is really, the President uses Navy chefs so that he can be sure of their trustworthiness.