Once a month the school has a fire drill. The Powers that Be tend to scatter these things throughout the day, mainly so that no one period loses that much time. And to keep all of us on our toes, I'm sure.
This past month, it went off during my AP Chem class. Ordinarily, this would have delighted them. This time, however, it was during a quiz. A couple of them mentioned they were worried they wouldn't finish. Jokingly, I said that if they were that concerned, they were most welcome to take their quiz & something to write on out to the football field.
The next thing I knew, ALL of them simultaneously grabbed their books & pens & took them out to the field.
Yes, they kept working. No, they didn't cheat. And yes, I really do take my camera everywhere.