Maybe Peter was in some kind of trouble at school and they needed to rescue him.
Perhaps they just wanted to surprise Peter and show him that they care about his normal life as well as his superhero life. They might have planned a fun day out for him after school.
It could be that they had a special mission and they needed Peter's help right away, so they picked him up from school.
Well, it could be really chaotic. Maybe the other students would go crazy seeing the Avengers at school. Peter would probably be a bit embarrassed but also proud. And then they could all go for ice cream or something fun together.
In this fanfiction situation, it could start with Peter being a bit embarrassed at first. He's just a normal kid at school, and suddenly the Avengers are there. But then Captain America would put him at ease with his kind words. They might pick him up because there's some sort of danger that Peter's special skills are needed for. And on the way, Thor could be joking around, making everyone laugh.
Peter's classmates would react in different ways. The ones who are fans of the Avengers would be over the moon. They'd be shouting out their favorite superhero names. But there might be some who are a bit scared, especially when they see the Hulk or Thor with their big and imposing figures. And then there would be the ones who are just plain curious and would start asking a million questions.
In some fanfictions, Peter could have a secret that he's keeping from the Avengers. When it's eventually revealed, they might feel betrayed and turn against him. It could be something related to his powers, or his past associations that the Avengers find unacceptable, thus resulting in their hatred.
One possible reason could be that Peter is being framed for something. Maybe there's a misunderstanding where evidence is planted to make it seem like he's betrayed the Avengers, so he flees to clear his name.
One possible reason could be a misunderstanding. Maybe Peter accidentally gets involved in something that looks bad to the Avengers, like being in the wrong place at the wrong time during a security breach. So they misjudge him and are mean as a result.
It could be when there's an immediate threat and they need his help. Maybe the school is under attack by some villain, and they rush in to get him.
One possible reason is that Peter's quick rise to popularity among the public might make the Avengers jealous. They've been around for a long time, and suddenly this young kid is getting all the attention.
One possible reason could be overexertion. Peter Parker is often in high - stress situations in the Avengers. If he uses his powers too much, like constantly swinging around the city or fighting powerful enemies without proper rest, his body might give out and he could collapse. Another reason might be some sort of poisoning. Maybe he gets exposed to a new kind of chemical or toxin during a mission that affects his superhuman physiology.
Well, perhaps there was an emergency at Hogwarts. Maybe some dark forces were approaching, and Snape, being a powerful wizard and a Hogwarts professor, felt it was his responsibility to pick Harry up. Harry was always a target for the dark side. Also, it could be that Snape had some new information about Harry's family or his destiny that made him decide to take Harry under his wing, so to speak, by picking him up.