(Strip Number 489, Original Publication Date, 31 October 1983)
Panel 1: We start things off with Mike in costume ready to go out; Elly tells him that he can't go trick or treating until he's had some of whatever she's disguising.
Panel 2: She then notices that Lizzie is still wearing a pair of her shoes and tells her that she cannot wear them because she cannot walk in them.
Panel 3: Lizzie says that she knows this.
Panel 4: She then says Daddy can carry her; Daddy looks even more rattled than he did when Elly called him a nutcase.
Summary: This, of course, is because they don't realize that Lizzie has no proper idea of how much she weighs. Why do you think she never understood why Elly didn't want to carry her, eh?