Vecchio and Fraser in “The Man Who Knew Too Little”

Now, in the care and operation of this vehicle there is one thing to remember and hold above all else: never, I repeat never use the lighter. Of all the original parts in this car it was the most difficult to replace. It took me seven years to find that lighter and since I've owned it it's never been depressed.

Then... how do you know it works?

I know in my soul.