There was a guy out of Hurn who forgot to change the fuel tanks over during the CPL test. Just as they were rejoining Class D airspace everything went very quiet as the tank went dry.
He followed the drill correctly and managed to get it all started again - perhaps that was the only reason he still got a partial. (Also possibly to save the examiners blushes as he had obviously forgotten it as well)
I failed mine first time round - on the recovery from stall on simulated base turn, I didn't put enough rudder in when I put the gas on. I then put my glide approach in like a carrier landing so failed both sections. Luckily passed straight through at 2nd attempt.
Needless to say was petrified throughout most of it - forgot just about everything, and the worst moment was when the airplane didn't start first time with the examiner sitting there - I still had the mixture to cutoff, durrr!