This looks suspiciously like a two way mirror. In a shower : r/CrappyDesign

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Sleek and Modern Two-Way Mirror Public Restroom

Woman investigates after noticing strangely placed mirror in restaurant bathroom

This mirror in a, other than that, very nice hotel : r/CrappyDesign

The mirror in my hotel doesn't fog up in the middle : r/mildlyinteresting

This looks suspiciously like a two way mirror. In a shower : r/CrappyDesign

Do you shower the 'normal' way? Woman sparks fierce debate

This looks suspiciously like a two way mirror. In a shower : r

11+ Pics That'll Test Your Eyeballs

19 Showers That Were Badly Designed

Contractor Warns Woman to Check for Two-way Mirrors With Simple Trick - Dengarden News