There's just so, so fucking much to digest here, I'll just hit the high points:
1. If you ever ask a kid if they were cheating/stealing/etc, and instead of just looking you in the eye and saying absolutely not, they rattle off a five minute diatribe of unnecessary information for no apparent reason, they were almost certainly doing it.
2. If, in the process of rattling off a five minute diatribe of unnecessary information the kid mentions that they know other kids who definitely were cheating/stealing/etc who they can tell you about, that kid was 100% doing it.
3. If you ever play poker with Jimbo Fisher and he starts nervously taking his glasses on and off, you'll know you're about to make some money.