i go to work pretty early in the mornings, just past 7am and sometimes i leave the office when it gets dark..
what pisses me off is that some cars drive in stealth mode

black or really dark coloured cars driving without lights on when the streetlights are either off or not turned on yet...
you can't see them properly and they usually drive really fast...
i've almost driven into them a few times...
worse is when it is raining and you totally cannot see them...

i drive a black car myself but i am almost pathological to drive bright when the light isn't very good...
if you guys drive a dark car, please, for everyone's safety, turn on your headlights!