Night courtesy

[Horse]

Worth noting that, even in daylight, reflections on the screen can hinder view into the car.

[TripleS]

I switch to sidelights to allow the other driver to see where the road is (and isn't). After all I have already ceded priority and the quicker (s)he can assess how to pass me the better.

Intelligent analysis.

Yes it is. I rather appreciate that kind of consideration, and it helps both parties.

A similar principle applies where we have temporary traffic light controlling single line traffic at roadworks. Those waiting at the red light all seem to sit there with their ****** headlights blazing down the road, not helping themselves in the slightest, but often making vision more difficult for those who are moving and needing to pick their way carefully through the area.