"It was night time when we hit the straightest road in Australia, though there wasn't much difference comparing to the 10 hours of ""not-so-straight"" road. We saw a car coming, and automatically turned our high beams down, but then we realized it was a straight road, the other driver could be really far away. Fair enough, we turned our high beam and our timer on, it was almost 6 minutes before the other vehicle was close enough for us to turn our beams down!"