But I did react exactly like the NutureShock book mentions.
I'm feeling pangs in my chest just thinking of all the times I froze with a fear of failure when presented with even the slightest challenge. Or even worse, when I would brush something off as beneath me, since I was so smart. I didn't need to try.
This is simple human bias if you expect something to be good it will be good, and has to do with how your teacher feels about you.
I once got an A in a philosophy course where I never even turned in any work. I think the teacher knew I was generally smart and argumentative, and just gave people marks accordingly.
I wouldn't do that today, because I'm more aware of how irrelevant school is.