I have quite a high IQ. When I was starting school, they though I had a learning disability. My parents sent me to be tested . Apparently I was one of the smartest kids that the tester had seen, but I was a bit disorganized and tended to overfocus (which would be diagnosed as mild ADHD these days ... when everyone has to have a frigging disorder). I don't know how high the score was, or how many kids he had tested, or whether all the other kids were genuinely low IQ ... who care about this stuff anyway?

My parents were smart enough to not tell me (until I was halfway through uni), because they knew I wasn't mature enough to know that the smartest thing you can do (especially when you are learning) is giving other people's intelligence the benefit of the doubt and try to learn from them.