Homer: It's Mr. Smithers, he's calling for you. Smithers:

Homer: It's Mr. Smithers, he's calling for you.
Smithers: [on a beach] How's everything going there, sir? Well, I have
a lot of... free time on my hands. If you FedEx me your mail
I'd be happy to open it and return it to you.
Burns: Everything's fine, Smithers. But this Simpson fellow seems to
be getting dumber by the minute, I've never seen anything
quite like it. Anywho, you just enjoy your vacation.
Homer: [moans]
-- Nothing like being appreciated at work,
"Homer the Smithers"

Related:

• Burns: The telephone has been ringing for some time.
  [severely] Answer it. Homer: [answers] Yello. ...
• Burns: The one who shot me was...[camera pans to Smithers] Aah!
  Aah! Waylon Smithers! Smithers: [pained] Noo! Wait...
• Burns: [gasps at his sight] Good Lord, Smithers, you look atrocious.
  I thought I told you to take a vacation. Homer...
• 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...
• Smithers: Oh my God! I knew I shouldn't have left..
  Burns: Ah, welcome back Smithers. Say, do you know...
• Smithers: [feeding him] Here comes the endangered condor into the power lines.
  I've got Bobo hot from the dryer. Careful not to burn...
• Burns: Who is that lavatory linksman, Smithers? Smithers:
  Homer Simpson, sir. One of the fork and spoon operators...
• Man: I'm sorry, Mr. Burns, but I must object. This Simpson is not qualified!
  [There are nods of agreement] Burns: I see. Well,...
• Doughnuts? I told you I don't like ethnic food! -
  Mr. Burns, commenting on Homer's breakfast, "Homer...