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I'm sure we've all had some unflattering theories about how Jack in the Box would achieve a Guinness World Record ("Most People Made Uncomfortable by Creepy Mascot" was my guess). But the fast-food chain recently unveiled the world's largest coupon, made to promote its new Buttery Jack burger.
Yes, Buttery Jack sounds like one of those Dutch holiday monsters invented to scare kids, but it's actually a quarter-pound burger with garlic herb butter melted on top.
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