my class has this one student (not in the back, in the middle of the other 39 students) who brings snacks to school every day. There's stuff like fruit-flavored candy, choco-balls, and chips. The thing is: it's like a whole operation the teachers don't know of (because it's against the rules, of course.)
Every morning the snack kid would give some snack to a few students, like sub-snack kids to spread the snack around the class. Kids would ask the snack kid nearest them for a specific snack, and they'd get it passed to them under-the-table, literally.
The school year's almost ending and no teachers have ever found out
Oh, and the snitches never got any snacks, of course.