Actually, my memory about that is not all that clear, because it was really dark at the time, so I couldn't see very clearly.
Here's roughly how things went down.
That year, the girls' shower room pipes broke and had to be repaired, so the school sent out a notice that the girls should use the boys' shower room from 5 to 9 pm.
As for the boys, they were forbidden to go in during that time.
One night, I remember that after the girls from my dorm had showered, one of them forgot her bottle of shower gel. She asked me to go retrieve it for her.
My watch was broken at the time and it just so happened that I rushed to the shower room thinking it was nine o'clock, but in reality, it was already five past nine.
Because it was a Sunday, the school was pretty empty, and the shower room was pitch-black.
When I hurried in, I thought there was no one in there. I was looking for the shower gel with my flashlight when I accidentally shone it a bit further inside.
