"The best way to check for a two-way mirror is by using your fingertip. On most mirrors, if you place your fingertip on the mirror, the reflection of it will not touch. Instead, it will leave a quarter inch gap or so"
Went to check all mirrors at home, and placed my fingertip on them. In all, the reflection of my finger touches my finger.
I'm gonna need to have a serious conversation with my wife now.
I assume it has to do with which side the reflective coating is on? If it's on the room-facing face there is no gap. If it's on the backing (wall-side face) there is a gap as thick as the glass.
Went to check all mirrors at home, and placed my fingertip on them. In all, the reflection of my finger touches my finger.
I'm gonna need to have a serious conversation with my wife now.