"I'm aware of the density of his skull, sir." There was a lightness to her tone that wasn't there before. And a respect too. "I'll go speak with him directly. You're help is appreciated."

She can't say 'thank you'. It's a phrase that is detrimental to Fae in many cases, and she was become less human and more fae every time she blinked it seemed. So she had to work around it as best she could. Mortals required verbal thanks.