It's already been 5 years since Harry Potter and the Deathly Hallows Part. 2 descended from the Gods and changed life as we know it, but the world remains so obsessed with JK Rowling's epic magical universe that we can't stop pouring over the books and movies hoping to find new easter eggs or spot details we never saw before.
And as with any work of fiction, there are a few plot holes, goofs, or things that just don't make much sense here and there. Check 'em out, and let me know if you agree in the comments, or if there's actually an explanation...
1. The winking boa
In The Sorcerer's Stone, Harry has a conversation with a boa constrictor at the zoo on the day of Dudley's birthday. After vanishing the glass of the snake's cabinet, the boa winks his appreciation at Harry and tells him he's off to Brazil.
The goof: Boa constrictors don't have eyelids, and therefore cannot wink.
2. The marauder's map
You may remember that the Marauder's Map, as procured by Fred and George in The Prisoner of Azkaban, displays the location of every person in Hogwarts, even if disguised...
So how did nobody spot Peter Pettigrew, a.k.a Wormtail, when transfigured as his animagus, Ron's shabby pet rat Scabbers?
The plot hole: The map and the rat had been in Weasley hands for years, so the only way they'd never have noticed a mysterious stranger named Peter Pettigrew in the Gryffindor common room is if they'd never once looked at the map, but they actually tell Harry they've used it to get up to ample mischief over the years. As plot holes go, this one's pretty big.
3. Albus Dumbledore, party animal?
Back to Sorcerer's Stone, and this time Dumbledore has been telling porky pies to the lovely McGonagall... maybe.
In the opening passage of the book, whilst waiting for Hagrid to deliver baby Harry, Albus tells a feline Minerva he passed through several parties on the way to Little Whinging celebrating the downfall of Voldemort.
The goof: We're explicitly told that he arrives by apparition. Of course, he may have apparated from one party to the next - if he felt like throwing a few shapes along the way.
4. Happy holidays, Harry!
This one is less of a plot hole, more a casual observation: why exactly does Voldemort wait until Hogwarts is about to break up for the Summer in his annual attempt to murder Harry?
Guess he just really cares about Harry's education.
5. Defying Death
In Deathly Hallows, we learn that the story takes its title from the three objects which, together, allow their master to conquer Death, effectively becoming immortal: the Elder Wand, the cloak and the Resurrection Stone.
However, in the fairytale of the three brothers who obtain the three hallows, the youngest - he who has the cloak - eventually hands it to his son, revealing himself to Death and going with him gladly.
The plot hole: Despite the claim that with all three objects one can evade Death, it actually only takes one of the hallows, the cloak, which renders the entire tale kind of redundant.
Relive the Tale of the Three Brothers and see for yourself...
Bonus question: If being in possession of the cloak of invisibility that kept the youngest brother alive is enough to grant the keeper immortality, could Harry not live forever in theory - or was the cloak in the story strictly symbolic?
6. Dumbledore's travels (Vol. 2)
Yup, it's Albus again, causing more confusion with his stubborn insistence on bending the rules of apparition.
At the end of Half Blood Prince, after becoming gravely injured in the cave during the horcrux mission, Dumbledore apparates into one of Hogwarts's towers with Harry.
The plot hole: It's frequently said by the headmaster himself that apparition within the boundaries of Hogwarts is impossible. Obviously, he has the power to lower the defensive spells around the castle, but we don't see him do so, and in doing so he would put the students at risk at a time of high alert.
However all of this can be explained simply by saying that, as the MVP, Albus Dumbledore does whatever dafuq he wants, and you'd better not question it.
7. The Triwizard Tournament
The entire plot of Goblet of Fire revolves around the epic, newly revived Triwizard Tournament, with students from Durmstrang and Beauxbatons spending the year at Hogwarts to watch their champion compete.
The goof: Although the dragon task takes place in the Quidditch arena, the following two - the underwater task and the maze - are hidden from sight of the spectators, meaning the good boys and girls of all three schools spending a solid hour or more watching... absolutely nothing.
8. The Time Turner
In Prisoner of Azkaban, Hermione uses a time turner to attend more classes than should be possible, because you know, she's a massive dork and a bit of a masochist.
The plot hole: After Hermione's use of the timepiece is revealed, McGonagall states that meddling with time is dangerous and that the stone must never be used to alter the course of events. But if it's so dangerous, would she really trust a third year student to use the time turner daily?
Also, if anyone in Hermione's various classes actually communicated, they'd work out her secret pretty much straight away.