I saw GTO a while ago, and now I need to find out in which episode of the anime he writes a kanji wrong (辛, spicy, instead of 幸, happiness).
I know that in the manga there is an episode in Lesson 51 / 52 where he writes like "tax sex" instead of "best of Japan" after scoring top grade in the public tests, which should be around episode 15 - 16 in the anime, but the scene got deleted and anyway the setting I remember is quite different.
I think the scene I remember takes place on the school roof, with the boys correcting him. I have nothing more than this, besides a few hypothesis. Can you help me?