Today my friend was driving along a one lane national road, speed limit 100km. IE just one lane heading north, and one lane in the opposite direction heading south. Far ahead of us there was a car which had stopped and was trying to make a right turn to turn off the national road. So my friend slowed right down behind that vehicle, to wait for it to make the turn. It was taking the driver a while as there was a lot of traffic in the other direction. My friend later claimed he was always taught only to use the hard shoulder in an emergency so he was therefore just waiting patiently behind this driver who was trying to turn right. 5-10 seconds later I noticed a car zooming in behind us way to fast, and that car only just managed to stop in time to avoid us, and seemed in half a mind to swerve past us to the left and undertake us on the hard shoulder. Fortunately he just managed to reduce his speed in time. That panicked my friend a bit and so, as the car in front still hadn’t made the turn (he seemed to be missing gaps to go, although his right indicator was still on, I don’t know why the car was not moving off) my friend decided to carefully pass him on the left using the hard shoulder, and than I noticed that at least half a dozen other vehicles followed our car also using the hard shoulder to undertake the stopped/turning car which was still blocking the whole lane. Did my friend drive correctly, or should he have used the hard shoulder in the first instance to avoid bringing the fast moving traffic behind to a standstill due to being stuck behind the car trying to turn right? Or was the guy who zoomed right up behind us not observing the stopped traffic ahead just driving very dangerously?