Claire: Let's just get new smoke detectors.
Phil: We already changed 'em out last year. Remember, buddy? You helped me.
Luke: Sure did.
Phil: Wait a minute. What'd you do with the old ones?
Luke: You told me to throw them in the garbage so I put them in the attic to make a robot.
Phil: It's the old ones. The batteries are dying and we can hear 'em through the vents. You did it, buddy.