Another situation could be that Dumbledore, who Harry has always trusted, has a hidden agenda all along. He could be using Harry for his own purposes, like being a pawn in a bigger political game within the wizarding world. This revelation would make Harry feel extremely betrayed as he looked up to Dumbledore as a mentor.
In a 'Harry Potter betrayed fanfic', perhaps Hermione turns against Harry. It could be because she disagrees with Harry's more dangerous and reckless plans to fight Voldemort. She might think he's endangering too many lives without proper thought, and this leads to a rift and a sense of betrayal.
In the 'Harry Potter Controls the Elements Fanfic', perhaps Harry discovers his element - controlling powers gradually. He first starts with something simple like controlling the wind to cool himself on a hot day at Hogwarts. Then, as he grows more powerful, he can combine elements. He could create a storm by mixing air and water elements, which he uses to protect his friends from a group of Death Eaters.
One possible scenario could be that the magical characters find themselves on a Muggle plane due to some strange magical accident. Maybe they were trying to apparate but got misdirected into the plane. Then, when the plane starts to crash, they use their magic to try and save the day, like Harry using a spell to slow down the fall or Hermione creating some sort of magical shield to protect the passengers.
When Hermione, the voice of reason, betrays Harry because of some newfound 'truth' about him. Harry has always counted on her intelligence and loyalty. So when she turns on him, it's not just a loss of a friend, but also a loss of the one who could have helped him make sense of things. It's like his whole support system crumbles.
Perhaps there's a potion accident. Harry might have been experimenting with a new potion in Potions class, and something went wrong. The potion could have affected his body functions, resulting in his need to wear diapers. It could add an interesting and comical twist to the story.
One possible scenario could be that Hermione finally realizes her deep - seated feelings for Harry. In the fanfic, perhaps after a particularly dangerous adventure where they almost lost each other. She might approach Harry in a quiet moment, like in the Gryffindor common room late at night when most students are asleep. She could be a bit nervous but determined as she asks him out for a walk by the lake or a trip to Hogsmeade. This would be a huge moment for their relationship as it takes a more romantic turn.
One possible scenario could be that Harry, Hermione, and Ron continue to work on reforming the wizarding world. They might focus on improving the relationships between different magical communities, like the werewolves and the wizards. Another could be that Harry finally gets to have a normal life, teaching Defense Against the Dark Arts at Hogwarts and sharing his real - life experiences with the students.
One scenario could be that he's under the Cruciatus Curse. This curse inflicts intense pain, and Harry has faced it before. In a fanfic, it could be used by a new dark wizard adversary, making Harry cry out in agony.
Yes, there could be many. For example, in some fanfics where characters are in a serious battle situation, like Harry facing Voldemort in a final showdown. There's no room for ticklishness as they are focused on survival and victory. Their minds are on spells, defenses, and strategies, not on any kind of ticklish sensations.
Another scenario could be that an impostor, using some form of shape - shifting magic, disguises as a Gryffindor and does things that make it seem like Harry has betrayed the house first. As a result, the real Gryffindors, deceived by this false appearance, turn their backs on Harry.
Maybe they were forced into it by some dark magic or a powerful dark wizard. They could have been blackmailed into betraying Harry to save their own lives or the lives of others they cared about.