In 1924, Kleenex launched its “facial tissue”, a disposable makeup remover. Makeup remover? While there are no doubt lots of people who use facial tissue to remove their makeup, clean up spills, hold chewing gum, and a thousand other things, I’d venture a guess that most of us, when we say, “I need a Kleenex”, mean we need a handkerchief. Therein lies the lesson: expect the unexpected.

Let’s go on a virtual field trip to two very different places. We’ll start with a kindergarten classroom. Open the door and picture it in your mind. What decorates the walls? What kind of furniture is there? Is the room divided into different areas? What are they? If you didn’t know it was a kindergarten classroom before you had opened the door, what would make its purpose obvious to you when you did look inside?