Smithers: [over P.A.] Attention Homer Simpson. Attention Homer
Homer: [still dozing at his post]
Smithers: Wake up, Homer.
Homer: [startles awake]
Smithers: You're fired.
Homer: For what?
Smithers: For sleeping on the job.
Homer: How'd you know I was sleeping?
Smithers: We've been watching you on the surveillance camera.
Homer: Camera? [spots the camera] D'oh!
-- `If I Only Had a Brain' in "Treehouse of Horror II"