I almost failed my driver's test parallel parking. I was in a '76 Monte Carlo, there was a large and small car parking slot at the DPS office and the Trooper wanted me to put it in the small spot. I got halfway in and looked at the guy with a, "Really?" look on my face.
He said, "OK, pull out. " He took points off for not parking, but I didn't hit the flag so it wasn't a "crash" and it wasn't enough points off to fail me.
Since then I've mastered it