I took my driving test in Surbiton, Surrey. Some of the avenues there are quite wide, and my examiner chose one of these for me to "turn the car around using forward and reverse gears".
I turned going forwards, reversed back across the road perfectly, then a lady chose to park exactly where I was turning, prevent me from completing the move.
I didn't know what to do, but my examiner got out and remonstrated with the lady, and got her to move along the road a bit and park there.
By now I was completely flustered and couldn't release the pawl button on the handbrake. When I finally managed it I shot across the road and had to reverse back again as I didn't have time to turn properly, turning an easy 3 point turn into a 5 point turn. I was convinced that I had failed and was very pleasantly surprised when the examiner announced that I had passed.