xkcd #3232: Countdown Standard
Title text:
Anyone who is caught counting 'three ... two ... one ... zero ... GO!' will be punished with a lifetime of eating only ISO standard food samples.
Transcript:
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Source: https://xkcd.com/3232/
In T2: Judgement Day, when Miles Dyson has to turn two keys simultaneously to open the vault to get the Terminator prototypes, they go
3-2-1-turn and then AFTER that, they turn. How many times would people have messed that up, learning such a weird pattern? That's totally unintuitive!
Judge it yourself