[voice]
[Frowns. Doesn't like the sound of that at all.]
Tired? Do you know if he's been sleeping properly? He tends to stay up very late if he's not made to go to sleep sometimes.
[... What if he hadn't eaten? Had he been getting his coffee? Who had been cleaning after him when he carelessly threw his papers around and needed help finding things, or alphabetizing, or rationing his work load?