Ok, I see
Well, my own school is usually only open between 7.30 on the morning and ends about 18.00 on the afternoon, and since there’s not all that many clubs at the school, there isn’t all that much activities at school after a certain hour of the day. And after that, some secturity guards will patrol the scool and ask any reamining pupils to go home…
So, at my school, it’d be hard to “hide” any “night activities” at my school, even if I know of some rooms where it’d be possible to hide that you were doing such things .
But it’s true that in anime, most pupils doesn’t seem to have any problems with staying at school at night or after school… Hmm, I think that in one of the epsiodes of Ranma¬Ω, the Science club could be seen doing their experiment at school at NIGHT!! So from what we see in anime, Japanese schools seems to have different rules when it comes to the “after school” subject…
I wish I had asked the Japanese students and their teavhers who visited my school last week about that (what a nice people, the Japanese! That was the impression I got of them during their visit - I spoke with the students and the teachers quite a lot during their visit, and they were very polite )