"Yes, my lord."
"Her Grace tells me that a respectable Battersea architect has discovered a dead man in his bath."
"Indeed, my lord? That's very gratifying."
(From Whose Body? by Dorothy M. Sayers. This is a Lord Peter Wimsey novel. He is the son of a duke, and Bunter is his butler - obviously having the legendary imperturbability of the British butler, plus a keen interest in his lordship's cases.)