The pattern on the floor tiles made me dizzy. The floor looked as if it was made of dips and mounds instead of being perfectly flat. I tried not to look at it, since every time I did it made me stumble. It was difficult not to look when everything was reflected in the mirrored walls. I looked around for the door but it was reflected everywhere. Finally I spotted it and made a dash for it and tripped on a real dip in the floor. I cursed the illusionist architect who created the room and their infuriating sense of humour.