Bit of a sidetrack - but I'm amazed at the number of people who don't know how to overtake. Used to travel the A9 between Perth and Inverness regularly. People would sit 3 feet off the bumper of an artic, then swerve out to see if it was clear. They really didn't understand that by sitting about 10 feet further back they could see the entire road in front, plus gain a little momentum rather than pulling out in 5th and panicking because they aren't actually going anywhere!