Burns: Now, I insist that you take a vacation, just as soon as a temporary substitute can be found.

Burns: Now, I insist that you take a vacation, just as soon as a
temporary substitute can be found.
[leads Smithers to the door and closes it]
[from behind the door] Sheesh.
-- Smithers is overworked, "Homer the Smithers"

Related:

• Burns: Good Lord, Smithers! You look atrocious. I thought I told you to take a vacation.
  Homer: Uh, Smithers already left, sir. I'm his replacement...
• Burns: Pull yourself together, man. I daresay you're in need of a long vacation.
  Smithers: No! Don't make me take a vacation! Without...
• Burns: [gasps at his sight] Good Lord, Smithers, you look atrocious.
  I thought I told you to take a vacation. Homer...
• Troy: [voiceover] A few years back, Bart was adopted by Mr.
  Burns. In this very special outtake, Homer...
• Burns: The telephone has been ringing for some time.
  [severely] Answer it. Homer: [answers] Yello. ...
• Smithers: Uck. My mouth tastes like an ashtray. [burps up a mouthful of cigarette butts] [opens bathroom door,
  sees someone in the shower] [opens glass...
• Homer: It's Mr. Smithers, he's calling for you. Smithers:
  [on a beach] How's everything going there, sir? Well...
• Burns: Who is that lavatory linksman, Smithers? Smithers:
  Homer Simpson, sir. One of the fork and spoon operators...
• Burns: [looking up from his magazine] Smithers, what's the meaning of this slacking off?
  Smithers: Uh, there's a bee in my eye, sir. Burns...