I did, I always felt the teachers at primary didn't get me, I knew I was clever but they kept giving me reading books that were too easy and putting me in middle groups when I knew I was brighter than the children in the top groups (not sure how/why I felt this but I do remember it clearly). I was a very shy child, not quick to speak up, so maybe they just didn't realise I was there!
Anyway come GCSE Olevel, I got the actual best results in the whole school