There were many shitty things during my school days.

When I was in elementary school, there was once a month called "Waste Paper Collection Day."
I used to take things to a flea market, but if I didn't have anything, I'd go empty-handed.
I remember being beaten because I went empty-handed.
Why on earth did they do something like that in school?
I don't want to badmouth the teacher for it.
It must have been a tedious task for the teacher as well.