How do you make a room dark? Do you shut the lights, cut the lights, or turn off the lights? “Shut the light,” as Bob Dylan sang, may derive from old lanterns on which you’d shut a little door. They’re all correct, though even the most common phrase, turn off the light, sounds weird when you think about it. After all, you’re not turning anything if you’re flipping a switch up and down. This is part of a complete episode.