This guy did, I heard it didn't work
Kip: It's a time machine, Napoleon. We bought it online.
Napoleon Dynamite: Yeah, right.
Kip: It works, Napoleon. You don't even know.
Napoleon Dynamite: Have you guys tried it yet?
Kip: [reluctantly] No.
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Napoleon Dynamite: [using time machine] Ow! Ow! Ow! Kill the pow... It kills! My pack! Ow! Turn it off! Turn it off, Kip!
[Kip pulls the electrical cord out, and Napoleon yanks off the headband]
Napoleon Dynamite: It's a piece of crap it doesn't work!
Uncle Rico: Well, I could've told you that.
[Uncle Rico is standing in the hall, looking wounded and disappointed]