One possible consequence could be immediate expulsion. Guns are not part of the magical world of Hogwarts, and bringing such a dangerous Muggle weapon would likely be seen as a serious violation of school rules. Another consequence might be confusion among the students and faculty. They are used to dealing with magic, not firearms. And it could also lead to a breakdown in the magical - Muggle secrecy that the wizarding world tries so hard to maintain, as guns are a very obvious Muggle item.
If Harry Potter brings a gun to Hogwarts in fanfiction, it could change the whole dynamic of the story. For one thing, it would introduce a new level of danger that the magic at Hogwarts may not be able to counter easily. The other students would be both curious and afraid. And it might make the wizarding world re - evaluate their view of the Muggle world's weapons. It could also lead to some really interesting interactions between Harry and his friends. For example, Hermione would surely lecture him on the inappropriateness and potential harm of such a weapon in a magical environment.
The characters' reactions would be diverse. Snape would likely be very critical and use it as another reason to dislike Harry. He might see it as a sign of Harry's lack of respect for the wizarding world's traditions. The other students would be a mix of those who are fascinated by this strange Muggle object and those who are worried about its potential for harm. Hagrid would be confused, not really understanding what a gun is but knowing it doesn't seem right in Hogwarts. Overall, it would create a stir among the Hogwarts community and lead to a lot of discussions and speculations.
Hermione would likely be shocked and disappointed. She is a stickler for the rules and the gun would be a blatant violation. Ron might be initially curious but then realize the seriousness of it. Dumbledore would be very concerned and try to understand Harry's motives. Snape would probably be quick to condemn Harry and use it as an excuse to give him detention.
In fanfiction, Harry might change the social structure at Hogwarts. He could encourage more friendships across house boundaries. By doing so, he breaks down the long - standing barriers between the houses. This would lead to a more harmonious and collaborative environment at the school, with students from all houses working together on projects and sharing knowledge.
One consequence could be a change in the school's power structure. If Harry controls Hogwarts, the old hierarchies might be challenged. For example, the influence of some traditionalist teachers could decrease. Another consequence might be a shift in the curriculum. Harry may introduce more practical and combat - related magic lessons, given his own experiences.
In fanfiction, Harry Potter often brings changes to Hogwarts' social structure. His own group of friends, which includes students from different houses, encourages more inter - house unity. This breaks down some of the traditional rivalries between houses, leading to a more harmonious Hogwarts environment. Also, his reputation as a hero might lead to more students aspiring to be like him, which could change the general attitude towards heroism and bravery at the school.
Harry might face a lot of criticism. The wizarding community might think he's being naive by bringing back Pettigrew. There's also the risk that Pettigrew could double - cross him. After all, Pettigrew has a history of betraying those who trust him. This could put Harry in a very difficult situation, especially if Pettigrew lies about Harry or tries to frame him for something.
They could also face legal consequences in the wizarding world. There are laws in place to protect the rights of wizards, and abuse is likely a violation of those laws. The Ministry of Magic might get involved, and the abuser could be sent to Azkaban or face other forms of punishment depending on the severity of the abuse.
One consequence could be that it alerts all the magical defenses of Hogwarts. This means that every protective spell, charm, and enchantment within the castle would be on high alert. For example, the portraits might become more vigilant, the secret passages might close off more tightly, and the ghosts could be more active in patrolling the corridors.
The Hogwarts community as a whole would be in shock. Harry is sort of a symbol of hope in the fight against the dark forces. His withdrawal could lead to a decrease in morale among the students and teachers, making them more vulnerable to threats. Also, the balance of power within the school could shift, as Harry has often been a key figure in dealing with various dangerous situations.