One possible reason could be his performance at work. Maybe he repeatedly failed to meet his targets or made too many mistakes. For example, if he was in a sales job and couldn't close enough deals, his boss might decide to let him go.
It could be his immediate superior. If his superior was jealous of Lloyd's intelligence or was under pressure from higher - ups to show some results, he might have used a minor mistake of Lloyd's as an excuse to fire him.
Perhaps Vernon is a character himself in a particular fandom. In that case, 'Vernon gets his fanfiction' might mean that the creators or fans within that fandom have written stories specifically about Vernon. It could be a really exciting moment for Vernon if he's aware of it, as it shows his popularity within the community.
Well, in a fanfiction, SpongeBob could be fired due to a misunderstanding. For example, Mr. Krabs misinterprets something SpongeBob says as a threat to quit. SpongeBob is devastated. He then tries different jobs like being a delivery boy for a seaweed company. However, he misses the Krusty Krab so much. In the end, Mr. Krabs figures out the truth and welcomes SpongeBob back with open arms.
One possible plot could be that due to some false accusations of improper teaching methods, Aizawa gets fired. His students then band together to prove his innocence. They collect evidence of his effective teaching, like how he has helped them improve their quirks and grow as heroes in training. Eventually, they manage to clear his name and he is reinstated.
Perhaps Vernon is caught up in a wizarding - related incident without realizing it. He might accidentally help some dark wizards thinking they are just normal business partners. When the wizarding world realizes his unwitting involvement, they arrest him to question him about the dark wizards' plans. It could also be that his mistreatment of Harry finally catches up with him in a legal way. For example, if there are laws in the wizarding world about the proper treatment of magical children in non - magical households.
No. The very concept of this scenario is not family - friendly. It involves inappropriate and disturbing ideas that are not suitable for general audiences, especially families.
Well, it could be that Harry discovers some major misdeeds by Fudge. Maybe Fudge has been covering up dark magic activities within the Ministry. Harry then finds evidence and presents it to the proper authorities, leading to Fudge's dismissal.
In this kind of fanfiction, perhaps Harry discovers some serious misdeeds by Snape that lead to his dismissal. For example, Snape might be caught unfairly favoring Slytherin students in a major way, like giving them unearned high marks in exams while unduly punishing Gryffindors. Harry, being the observant and just character he is, would report this to the proper authorities at Hogwarts, which could be Dumbledore or the school board. And this could start the process of Snape getting fired.