One winter day in a certain unnamed small college town, there was a snowstorm of such epic proportions that many roads were closed down. However, one stalwart and dedicated student decided to make the trek to class anyway. Because of the treacherous conditions, she arrived at the lecture hall forty minutes late, only to find the room empty except for the professor, busy lecturing, and one other classmate. She took the seat next to him.

After a few minutes, she leaned over and asked her fellow student, "What's the prof talking about?"

The other student replied, "How should I know? I only got here ten minutes before you."

What do we want? We pull the lever.