Attitude is everything. Be prepared to listen and act.
Last year I did a UK CAA PPL to EASA PPL conversion course with an ATO in Portugal. After having retaken my Air Law and Human Performance exams it was time to move on to the practical side of things. The practical side was 2 hours with an instructor and then the skills test. I had not flown in 18 months (long story) , but I was not overly concerned as I knew someone who just used to renew his licence just by doing a test every 2 years.
Well I got a horrible shock during the 2 hours. The instructor quite rightly pulled me up on a lot of things that were not up to scratch. If I had had a bad attitude to what he was saying I would not have gotten anywhere, and I would have failed my test. We had a detailed debrief after the flight. I have to say, that I agreed with everything that he pulled me up on. We agreed that I would repeat the 2 hours. This went much better, and I later passed my Skills Test! I bumped into my instructor after my test, and he did say that he had been hard on me. I did not have a problem with that as it obviously did the trick.
If you are being checked out for any reason, and you get some bad news that you were not expecting, you have to be prepared to take it on board, and act accordingly.