Capgras Syndrome – The patient believes that a friend, spouse, parent, or other close family member has been replaced by an identical-looking impostor.
We’re going on an overnight trip out of town. Whenever we do that, my wife packs a bag the size of a steamer trunk full of clothes and god-knows-what for all eventualities.
This morning, when I went to carry the giant bag downstairs, I realized it was only half full. It was too light.
And that is how I identified the impostor.