The context of the following conversation is Casey and Jan got caught cheating on a test so for punishment they had to pick up the rubbish in the school yard and each day they performed their duty.:
Casey says Jan and I finally finished that punishment we got for cheating, picking up trash ..
The friend responds You deserved it for cheating on that test. It was not the right thing to do..
Casey responds Everybody cheats. They were just making an example of us..
The friend responds I don't think everyone cheats. You have to have study harder.
Casey responds I believe you are right, I need to pay more attention at lessons..