Sitting in the hairdressing salon yesterday, I found myself staring at a reflection of myself. From the waist up, everything was much as I expected. From the waist down, things were a little disconcerting. It took me a few seconds to work out that the part of the mirror which stretched upwards from the floor was, in fact, an open space. And through this gap, I was actually viewing someone else's legs.
It was much like one of those flip-over books for kids, where you mix and match the top half of one character with the bottom half of another.