The only problem I have with DRL's is that a lot of people drive at night without actually turning on their headlight switch. I'm sure they can still see forward reasonably well with their headlights only 50% as bright (recent DRL's only run at 50% brightness, old DRL's ran at full brightness) problem is no-one else can see them from behind (no tail lights). I often wonder how they can see their gauges on the dash.
Nearly ran into the back of a lady the other day in a late 90's sunfire. She nailed the brakes, and there was an extra 2 to 3 second delay before I realized she was stopping REAL hard. Scared the life outta me how I could've missed that since I was so far back from her, then I realized why I missed it, she didn't have one working brake light... not even the center stop lamp (usually there's 3 bulbs in them). ALL her rear facing lights were out. If I was to beat her within an inch of her life with my spare bulb package, do you think the courts would go easy on me?
While we're on the subject of lights and such... another pet peeve of mine is lately (past 3 years or so) I've noticed that locally (Kitchener, Ontario) the ambulances have resorted to NOT using their sirens. I've been nearly wiped out on 3 separate occasions by speeding ambulances popping out from behind larger vehicles as they run a red light with no sirens going. In all three instances their sirens were turned on AFTER almost t-boning into me. I can understand the need for them to NOT want to annoy everyone by running the sirens all the time while they're on call to an emergency but when they're running red lights and weaving through heavy traffic or even through busy intersections on green lights don't they think it might be a good idea to use the audio warnings too? I thought if they were on call (and might be exceeding the limit) they were REQUIRED to use lights AND sirens? Or am I mistaken... any ambulance drivers among us?
Something else to note as well... just cuz I'm a bastard 0.001% of the time
I get a lot of high beam flashers while driving the Liberty at night. I know the headlights are bright, mostly because they're higher up and people think I'm running high beams. I've noticed this nasty little trick...
Turn on your headlights and driving lights.
Pull the stalk towards you and hold it towards you to turn on the high beams.
Pay attention that the fog lights go off and the high beams don't go on until you release the stalk.
Now do it again to turn the high beams OFF.
Notice that the fog lights turn ON when you pull the stalk towards you and the high beams DON'T turn off until you release the stalk.
If you hold the stalk in this position you effectively have fogs AND high beams on at the same time... NOW that's bright!!!
So go ahead and flash your high beams at me, you'll be getting it back WAY worse

If I had the renegade lights on top, those high beam flashers wouldn't know what hit them