1. Why is there always some bastard that comes in fifteen minutes late, after you've already got everyone else settled in and started?
2. Why do they always keep writing after you've explictly told them to stop?
3. Why do they always wait till I've started to collect the papers in before writing their names on them, even after me telling them to do so twice?
Clearly university would be much more efficient without all these bloody undergraduates.