I teach at a university. I give weekly quizzes on the readings for the week.

I had a football player approach me in the second week of class. He told me that he was injured in the last game and needed to do physical therapy in the hour before my class and wanted to take the quiz a day early so he didn't come in late and disrupt the class during the quiz.

How considerate, I thought. Come to my office during office hours and I will let you take it early, I said.

So for the next few weeks, he took the quiz a day before everyone else. He was polite and made small talk when he came to take the quiz in my office. He was considerate and waited out in the hall while the rest of the class took the quiz the following day. How considerate, I thought again.

It turned out that he was taking pictures of my quiz on his phone and mailing them to his friends on the football team.

Boo, not cool, I thought. Now no one takes quizzes early or late.

PART II-

I may have mentioned this, but I teach at a university. I give weekly quizzes on the readings for my classes.

I used to have the students correct the quizzes themselves. Pass the quiz to a neighbor, I'd say. They are only ten points and a drop in the bucket for the overall grade point value of the class, I thought.

These two girls who sat next to each other always had matching perfect grades for the first few weeks. Why is that? I thought. So on a lark, I had the students turn in the quizzes ungraded. I told them to pass their quizzes to the end of the aisle and I collected them. When it was time to grade the paper, the quizzes these two girls turned in were blank. They filled in the correct answers for each other.

*Boo, not cool," I thought. I emailed them both, asking them why their quizzes were blank. One confessed. One didn't. One passed my class. One didn't.