Aldi's business model has some interesting quirks that set it apart from the other grocery stores, especially in the most unexpected places. There's one particular policy that Aldi has regarding returns, and while it's "twice as nice" to customers, some employees think of it as an invitation for scammers.

According to Aldi, the "Twice as Nice Guarantee" follows this very simple premise: "If for any reason you are not 100% satisfied with the quality of any product, we will gladly replace the product AND refund your money." However, certain types of alcohol, name-brand products, and select non-food items are non-refundable.

As an employee of Aldi explains to Mental Floss, while the return policy is one of "the best in grocery," there are people who take unfair advantage of it. Some employees on Reddit have noticed "serial returners" in their stores, and one claimed that a customer once returned a half-eaten bag of cheese puffs for a full refund and a new bag.