When you think about it the identity of Superman and Clark Kent hinged on a single pair of glasses. Apply that to real life. Your spouse is reading quietly in the living room then has to go to the bathroom. He forgets his glasses in the bathroom and calmly walks back to the chair. You see him and scream "Who are You"?! as you grab a vase and smash him over the head leaving him permanently brain dead. All because he left his glasses in the bathroom. Sad, very sad.