1.
Sirius's failed goals:
2.
Dobby's broken promise:
3.
The confused thestrals.
4.
Ron's immediate reaction:
8.
Remus's favorite joke:
9.
Remus and Tonks's reasoning:
13.
Dobby's first and last words:
15.
Harry's respect for McGonagall:
16.
Professor Lupin, not Uncle Moony:
17.
And finally, the simple move of an apostrophe: