Proving a Point

In the middle of a busy, outdoor mall, a glass cube is unloaded from the back of a trailer. It measures ten feet in all dimensions. Outside of the metal frame and door handle, it's perfectly clear.

Two men in white coats, serving as both medical professionals and security, escort the robed artist inside. The men soon exit with the robe, leaving the naked artist standing alone. They observe everything from the truck used to pull the trailer in.

The first passersby hurry away in embarrassment, trying to avoid eye contact. Finally, someone approaches and reads the placard displayed on the clear door of the cube.