2.
This alternate history.
3.
This thing that would probably happen with American wizards.
5.
This reason not to be sneaky.
10.
This struggle to understand education.
12.
This explanation of every exam.
15.
The annoyance that was Hermione.
18.
This revision of the whole thing.
23.
This event that almost certainly was a thing.
24.
This obvious weirdness.
28.
This international reality.
31.
This solution to what was probably a very real problem.