A foggy day, viz down to less than 20m. So let's drive without lights. Or perhaps parking lights will be appropriate? Oh, and shall we tailgate too? I mean to say, what can go wrong? I am such a good driver, even the manufacturer of my car puts lights on when I turn on the engine. Obviously I don't have to think any more. So I won't.
Result: Large heap of twisted metal.
Morons.