No offence intended, sir. It's simply that Mr Black has been subject to catalepsy for several years now.
9 seconds sound clip from the The Comedy of Terrors movie soundboard.
You can hear this line at 00:42:08 in the Blu-ray version of the movie.
Quote context
[...]
- Why? Because Mr Black is dying.
- Oh, yes. Several times he's presumed to have died, only to revive some hours later.
- I see. Well, I'm virtually positive he's dead. But if you wish, I'll apply a few more tests.
- Oh, if you would, sir, if only to be absolutely certain.
- I'm sorry, but your master is quite dead.
[...]