I think the drivers in South Africa are some of the best mannered ones around. Most highways here don't have double lanes, so most often, if you're overtaking another car they will pull onto the shoulder, and let you pass. You repay them by hitting the hazard signals, for a click or two, which means thank you. We wouldn't have known this, however, without our friend Peter from Wilderness, whom we gave a ride from coffee bay. We had been wondering why people would put on their hazards after passing.