In a more dramatic scenario, during a battle at Hogwarts. Snape might find Harry injured and touch him gently to assess his condition. This could be a very poignant moment as Snape, who has always had a difficult relationship with Harry, is now showing a side of concern. It could also lead to a new level of respect between them.
It could be a plot device used by the author of the fanfiction. The touch might be used to create tension or an emotional moment between Snape and Harry. It could signify a turning point in their relationship, whether it's the start of a more positive understanding or the heightening of an existing conflict. For example, the touch could make Harry feel uncomfortable and lead to a confrontation later, or it could make him realize that Snape has a more complex side than he initially thought.
In some fanfictions, there could be a situation where Snape's true motives are being misinterpreted by the wizarding community. Harry, who has a deeper understanding of Snape's character, defends him. He could talk about Snape's unrequited love for his mother and how that love led Snape to make difficult choices. Harry may also point out that Snape was a key figure in the downfall of Voldemort, and without him, the outcome of the war would have been very different.
In such a fanfiction, perhaps Harry discovers some dark secret of Snape's that makes him decide to take action against him. Maybe Snape has been plotting something truly evil all along, and Harry finally uncovers it and has to destroy Snape to protect Hogwarts and his friends.
Perhaps in this fanfiction, Harry submits to Snape in order to gain access to some important information. Snape might be in possession of secrets about Harry's family or his own powers that he refuses to share unless Harry shows complete obedience. So, Harry decides to submit to Snape's demands in order to uncover these mysteries that are crucial for his journey as a wizard.
One scenario is when Harry is in danger during a duel or a battle. Snape might step in to shield Harry from a dark spell. Another could be when Harry is being bullied by other students or facing unfair treatment from the faculty. Snape, in these fanfictions, uses his position to protect Harry. For example, he might give Harry private lessons to improve his skills and keep him out of harm's way.
In a fanfiction, Snape might be hard on Hermione during detention. He could assign her extremely difficult tasks that are almost impossible to complete within the given time, just to test her limits. For example, making her organize his entire store of potion ingredients in a very specific and difficult - to - achieve order.
One possible scenario could be in a potions class. Snape might be unfairly criticizing Harry's work as usual, but this time Harry decides he's had enough. He stands up, looks Snape in the eye, and calmly but firmly defends his potion - making process, explaining how he followed the instructions correctly. This could shock Snape into silence for a moment.
Perhaps in the fanfiction, there's a curse that was meant for Snape but Harry jumps in to take it. As Harry is dying in Snape's arms, Snape has a moment of deep reflection. He might think about all the times he could have been kinder to Harry, and how Harry has now become a symbol of the good that Snape had long forgotten in his own life. And this moment of Harry's death could be a turning point for Snape's character development in the fanfiction.
One possible reason could be remorse. Harry might realize that he misjudged Snape all along. Snape had a complex role, and if Harry discovers the truth about Snape's true loyalties and sacrifices, it could lead to him crying out of guilt for how he treated Snape in the past.
One scenario could be when Harry is facing a difficult exam. Snape, despite his usual gruffness, takes Harry aside and tells him to focus on what he's learned rather than stressing about the outcome. This simple yet firm advice calms Harry's pre - exam jitters.