The Sevie Cycle

Every year, seventh graders are subject to daily roastings from the eighth graders, who call them "sevies" and pretty much bully them into submission. Once the eighth graders have left for high school the next year, the seventh graders become eighth graders and, out of revenge, do the same thing that was done to them to the incoming seventh graders. This cycle continues and will continue until all of the eighth graders grow some balls.

Seventh grader 1: Why are the eighth graders so mean to us?
Seventh grader 2: I don't know.
Enlightened seventh grader: It's because of the Sevie Cycle. The eighth graders bully us, and we eventually bully the seventh graders next year.