Right, since Ive been driving home at night this winter, four times Ive had cars coming the opposite way suddenly turn right in front of me, crossing my path. I know why this is happening - a car with Xenon lights driving along a bumpy road can look like its flashing you. Indeed, Im guilty of this too - last night, a VW MPV (not the Tourag, the smaller one) was bouncing along the road, and I mistook its flashing Xenons as granting me priority out of a side road, until I double checked its speed and realised my mistake.
So be careful when interpreting the intentions of other Xenon equipped cars, and be careful about the signals your Xenons may give off to other road users.
g