Let me immediately say that on the UK driving test, there are no minor or major driving errors, there are only driver errors, with some errors being classified as either serious or dangerous.

To pass the UK driving test, you are currently only allowed 15 driver errors, and none of these can be serious or dangerous driver errors.

Before I go into what is a serious or dangerous driver error, let me say that the best preparation and attitude to have if you want to pass the current UK driving test, is to go the driving test centre with the intention, knowledge and confidence that you will not be committing any driver errors during the test. If you know you have what you think is a minor problem, this could be your potential stumbling block, and you are relying on luck rather than skill to pass the driving test.

 Any driver error has a potential of becoming a serious or dangerous error depending on circumstances, so don't think that you can't fail because it is a little fault. Don't get me wrong, you probably will make mistakes during the driving test, but you must be confident that you have dealt with all the re-occurring problems that you are aware of.

 What is the point of presenting yourself for the test if you are constantly making the same mistake during the reverse parking exercise, hoping that you don't get that during the test?

Take the example of a simple mistake of not putting on the handbrake while waiting in traffic. That would be a driver error which will not cause you to fail the test (unless it takes you over the 15 driver error limit). However if the car behind you accidentally bumps you, and your car surges forward a bit without hitting the car in front of you (because you had stopped far enough behind using the 'tyres and tarmac' rule), your little mistake is now a serious error due to what you would say is no fault of yours, and you will fail the test. Even if your car does not surge forward when bumped, you are certain to fail the test because your car was not secured when stationary.

Using the same example of the handbrake, if a pedestrian was to walk in front of your car while you were stopped in traffic, with the handbrake off, you will fail the test, because that error is now a dangerous error, since the pedestrian was at risk while walking in front of your car.

As you can see, you will have failed the test by making a little mistake which went from being just a driver error to a test failing error in one moment, and the change of circumstance was not caused by you!  Many woulhappened outside the car. If you had the handbrake on those two external factors would not have changed the outcome of the test at that moment!d say that was bad luck, but the truth of the matter is that you made the mistake that ultimately failed you, irrespective of what

Don't blame the examiner for being harsh or not using his/her discretion to let you off on that occasion, drive to the standard expected and leave no room for any doubt.