(Strip Number 4555, Original Publication Date, 23 January 1986)
Panel 1: We find ourselves watching Elly carrying laundry and asking Mike where Grandpa is. Where Grandpa is happens to be the attic because he's convinced himself that they don't have enough insulation in the roof.
Panel 2: Elly yells up to him telling him to get down and stop doing the crazy thing.
Panel 3: His response is to sneeze loudly.
Panel 4: When he asks her when she last dusted the attic (just in case old fools who won't go down to the Legion Hall like REGULAR PEOPLE don't have to sneeze when they dither around up there witlessly), Elly glares at us in anger.
Summary: The real stupid thing is not that Jim makes a mess, damages the house and, while angry enough at himself for doing so, isn't angry enough at himself to pay for the repairs; the real stupid thing is that it turns out that the insulation is fine.