The entire episode was an exercise in "waiting for the other shoe to drop," but it never did. Atop the water tower Darrin said his shoe dropped… but at the end of the scene he still had it on. Maybe the writers were trying to tell us something about our assumptions.

Your post got me thinking…the whole episode was an exercise in "waiting for the other shoe to drop", but it didn't. Darrin said his shoe dropped… but it didn't. I think the writers knew exactly what they were doing.