From my comics backlog, a One Big Happy strip that turns on the distinction (in the philosophy of language) between descriptive statements (about what is) and normative statements (about what should be) and shows Ruthie and Joe’s mother exploiting normative statements for her own parental ends — using one to convey injunction or prohibition: saying that this should be the case implicating that you should — or must — act to make it so.
Oh yes, there’s also the third-person reference to her addressees, framing an injunction on them specifically as a kind of normative universal — a manipulation of address terms that the kids simply fail to comprehend (in the last two panels of the strip)
Joe and Ruthie are in fact tearing through the grocery story like wild animals. Ellen Lombard, their mother, asserts that her children do not act like that, meaning this statement normatively. Conveying, in fact, that not only should her children not act like that, but that they must stop acting like that.