So I'm an idiot if I avoid things that are unpleasant but won't harm me? And again, speed doesn't matter if I'm not in the car.

Or I'm an idiot if I would rather idle than pour alcohol on my windshield?

> If the weather is as cold as it gets here in Scotland in winter, the car will never warm up sitting idling.

Okay, then that person is an idiot, but it doesn't extend to the people actually warming up their car.