(Original Publication Date, 21 March 1991)
Panel 1: After scrubbing the walls, Elly clearly noticed that she needed to mop the floors. As she does so, she assures an anxious John that she should be doing so despite his clear reservations.
Panel 2: When he points out that the baby is overdue (by six days) and she could give birth at any time. She goes back to that I'm not sick business when she says that she's fine.
Panel 3: He then says that in her condition, she really shouldn't be doing anything strenuous.
Panel 4: He then shocks and horrifies her by wondering if he has any clean shirts.
Summary: This is because he himself is about to be shocked and horrified when told to wash his own duds.