[04_CaV!!]

Yes, Both high and low beams are on at the same time. No you can not alter your lights to have both of them on. One it's illegal. Two, you would be getting flashed every second of every day that your driving with both your high and low beams on.
I do what you have mentioned when someone is driving with their high beams on. I pull back on my high beam switch just a tad so that both my high beams, low beams and my fog lights are on. They usually get the point and turn off their highbeams 97% of the time anyways. If they don't I keep the switch pulled back just enough to leave all my lights on till I pass the driver.
I can be such an ass some days!!! Hey, a guys got to see, right?