These days some drivers are very retarded, they don't turn on
headlights while driving at night. Some are BMW and Mercedes, think
they trying to save on fuel by reducing usage of power. Hope they
get involved in collisions with buses and trailers. 
Can afford to drive BMW and Mercedes cannot afford petrol.

maybe they forgot to switch on.
on the contrary. there are those who has headlight that beam
like high beam...lol
this is blinding for the driver in front. but i had
correctly tune my head light to shine at the ant on the ground
5-10m in front of me already.