It was that student who made your skin crawl because you just knew he was a psychopath. Or do they call them sociopaths now? Anyway, he just sent you every imaginable signal that he was, indeed, emotionally vacant in some horrible, evil way. The thermometer on the wall said 80 degrees, but this student gave you chills. You felt the hairs on the back of your neck stand straight up. Even now, years later, you say a prayer every day to God Fucking Almighty that you never run into that student again.
The question is this:
Even though the student was passing your class, did you find a way to fail him? Even though your rubric indicated that he should have earned a B+, did you "accidentally" lose his test and assign him a D+ and hope he'd drop? Did you conspire with another proffie to engage in unfair (illegal, even) nefarious shit so that the student would be eliminated? Did you assault him or threaten him? Did you? Even though he was academically quite acceptable, did you sense awfulness in him and then eradicate him like a bad virus?
... For the good of the college and the world.
Q. Did you?
Vent. Confess. Find catharsis. Share the details. But, goddamnit, don't just reveal that you violated FERPA; everybody does that. And never mind the time when you slashed the tires on a student's car. I'm talking eradication. And if you haven't done it, then I want to know why.