(Strip Number 4219, Original Publication Date, 10 September 1982)
Panel 1: As Elly drives off to her interview, she smiles as she thought-bubbles that she's done it.
Panel 2: What she's done, of course, is put one offspring in school and the other in daycare.
Panel 3: This means that she's a free woman.
Panel 4: She then looks at herself in the rear-view mirror and, having noticed that she's frowning the goggle-eyed frown of existential horror, tells herself to stop looking at herself like that.
Summary: It is, as someone said, like dividing by zero with Elly because everything makes her feel put upon; she can't even be happy here because she thinks that other people will think that she wants to ditch her kids to go off and play. Also, she's being denied a chance to be martyred by her children so that counts as a form of martyrdom.