What's the oldest thing you are still steamed about?
Me: being told I'd confused Africa and Australia (on the map).
I was four.
@cstross when I was about 9 a teacher asked what do camels store in their humps. I put my hand up and said fat. they said no it's water. then 5 minutes later came to my desk and spent time explaining that camels store fat in their humps. they obviously got confused that I had given the right answer when the class was asked.