You know, EVERY examiner is a little different, therefore every exam experience will be different from the rest. Take mine for example.
My examiner is an old-timer with two hangars filled with Aeroncas, old pipers, wacos etc that he works on himself. Therefore, his "trip" was delving into systems and mechanics, and it turns out I knew very little about what he talked about, just the bare essentials.
Did I fail? Hell no, with only a few questions he knew exactly my areas of proficiency (airspace, aerodynamics, etc) and did not waste time on them. Instead, he wanted to point out my weaknesses and encourage me to learn more in these areas.
Everytime I missed a question he would go "Shame on you!" I'd get a sickening feeling when he'd say that but soon he told me to take him flying, and the rest is history.