I have a few I guess

no, I never saw mom and dad like that...
really!
there was some open-day at school when I had my very first year, and my parents (like others') came in to see how I do after spending there about 3 months. we had maths and learned counting. there were a couple of ladybirds (three if I am right) drawn on the blackboard and we had to count their spots. each one had 6.
when the teacher showed them and asked if someone cold count the spots I got up and cried out loud that it's 21, because there's nothing like a 6-spotted ladybird, only two or seven, and said things like she tries to cheat us and also hurts ladybirds

She was blushing like hell while tried to explain me that in maths it doesn't count, but eventually I went damn angry because of all this and after some shouting conversation that lasted a couple of minutes I rushed out from the classroom crying

can't remember my parents' face, but I can recall the teacher's, and I am still proud of that, she was worth it (okay, I only realised it years later, but she was worth it...)