Harry Potter and the Prisoner of Azkaban (novel)/YMMV
- Ensemble Darkhorse: Sirus and Remus.
- Fridge Brilliance: Why is Snape almost psychotic with rage over Sirius' escape at the end? Because, as far as he knows, Sirius is the one who betrayed the Potters and thus got Lily killed - rather less petty than the childhood grudge everyone assumes (although Snape's holding onto that, too).
- Fridge Horror: Harry's essay poking lighthearted fun at witch burnings. Sure, it was no more than a mild inconvenience for the wizard (one witch liked it so much that she kept allowing herself to be captured), but what about those poor Muggles misidentified as witches, who really are being burned at the stake?
- Also, how is Goyle's father going to react when he learns that Pettigrew, as Scabbers, ended up biting Goyle on the knuckle during the Weasley's first year?
- Funny Aneurysm Moment: At one point in Harry Potter and the Philosopher's Stone, Scabbers bit Goyle on the knuckle (which was even referenced by Fred and George Weasley in Azkaban). Come Azkaban, and the revelation that Scabbers was actually Peter Pettigrew, who was the true person responsible for leaking Lily and James Potter's location to Lord Voldemort and thus their deaths, not to mention the revelation in Goblet of Fire that Goyle's father was most likely one of Pettigrew's comrades among the Death Eaters. it becomes somewhat disturbing.
- Growing the Beard: Many fans believe that this is the turning point for the series as a whole, citing the encounter at the Shrieking Shack as evidence.
- Hilarious in Hindsight: "Can I have a look at Uranus too, Lavender?" You'll get your chance, Ron, when you start dating her in Book 6.
- Ho Yay: Sirius and Lupin. Even more so in the movie.
- Older Than They Think: Many people assume that Rowling invented Hippogriffs for this book. She didn't.
- Shipping Goggles: The series has enough of this to fill a page, but this entry probably has the best example, what has been dubbed "The Symbolic Flight". This theory states that because Harry and Hermione flew together on Buckbeak together and without Ron, that they are destined to be together - ignoring the fact that Ron was only not present because he broke his leg earlier.
- Straw Man Has a Point: Lucuis Malfoy is a pretty awful person, who attempted to assault Harry at the end of last book for freeing Dobby, but is it really difficult to see Hagrid as a Designated Hero for trying to keep Buckbeak at school? In the "Fantastic Beasts and where to find them" book it list Hippogriffs as one of the most dangerous beasts known to wizard kind and Hagrid thought it was appropriate to have thirteen year-olds approach them and train them? Granted Draco screwed up practically on purpose, but what if it was another student being attacked by accident?
- What Do You Mean It's Not Political?: Along with Umbridge, Aunt Marge's character was intended as a caricature of Margaret Thatcher, whom Rowling dislikes immensely.