Time for a history lesson, kids. Y'see, even back in the days when woolly mammoths trudged through the streets of Hollywood, scenes still took place in areas where a full film crew would be impossible. One of the most popular and common varieties of such a scene was when the characters were driving, either for a car chase or for a leisurely chat. Obviously, directors couldn't have their whole camera crew perched on the hood of a moving car being driven by someone more concerned with staying in character than with watching the road. Examples of Driving a Desk include: