On the surface, FooCalc is merely another four-function calculator program, but underneath, it is a revolutionary step-backwards in software engineering. Embodying the principles of "thinking inside the box" and "you can't fire me for doing what you told me to do," FooCalc is the defining example of the latest hot new programming fad, "Test Case-Driven Development." Check out FooCalc's source code and be amazed. You will come to understand the philosophy that "there's no such thing as badly-written software, just badly-written requirements." Now where's my laptop?