(Strip Number 4006, Original Publication Date, 15 May 1981)
Panel 1: We start off with John reading Mike a story book; Mike looks around for something and then asks "It's late; howcome Mom isn't home yet, Dad?"
Panel 2: As Mike looks at the book (which might possibly be about a shaggy dog who walks around his neighborhood looking for food), John explains that Elly's night school course is over for the Summer.
Panel 3: As he playfully chucks Mike under the chin, he smiles and allows as how he guesses that they went on the town to celebrate.
Panel 4: He then faces us and thought-bubbles "To a pub....without me."; it should be noted that he is glaring the Bug-Eyed Glare of Existential Horror™ and that his eyeglasses no longer have handles.
Summary: We, of course, are about to spend the rest of the week and the first part of the next watching John getting his shorts in a wad because Elly is going out on her own initiative and leaving him to worry; since he's a ridiculous jerk mired in a fifties mind-set, this confuses and horrifies him because it's the woman's job to sit anxiously by the clock wondering where the husband is, not the other way around.