Examinations have both a good and a bad side for the teacher.
The good side was drastically reduced class sizes, as students were either in the examination hall, or exempt from class due to having an exam next session. I had a splendid few hours tutoring a young pupil intensively with revision exercises. I'm very hopeful that it was a process that will engineer an adequate exam result.
The bad side was invigilating. The hall was susceptible to all sorts of noises, such as car alarms and uncannily loud stereos playing phasing swooping electrosynth beats. And when a student needed the toilet, I pressed the bell that signals someone from student services and they didn't bother coming for 45 minutes. Evil stares all round as the student felt as if I was somehow failing her. At least it wasn't so bad - there wasn't anything to mop up after. Yes, Tom, keep up the optimism!