Some of us are irritated when a grocery checker asks “Do you want any help out with that at all?” “At all” is traditionally used in negative contexts: “Can’t you give me any help at all?” The current pattern of using the phrase in positive offers of help unintentionally suggests aid reluctantly given or minimal in extent. As a way of making yourself sound less polite than you intend, it ranks right up there with “no problem” instead of “you’re welcome.”

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