Yes, there are some interesting ones. You can start by looking on fanfiction websites. Some might focus on their unlikely friendship, imagining how these two very different characters from different universes interact and go on adventures together.
One possible reason could be a misunderstanding. Maybe Percy was wrongly accused of something, like stealing an important item in the fanfiction world, and Sall, being impulsive, kicked him out without proper investigation.
It could be Vegeta. Vegeta might kick Goku out of a training session because he feels Goku is showing off or not taking the training seriously enough. Vegeta has always been competitive with Goku and this could be his way of asserting his dominance.
It might also lead to character development. For Sall, this action could show his or her flaws and lead to a journey of self - discovery where he or she realizes that kicking Percy out was a mistake. And for Percy, being kicked out could make him stronger and more determined, and he may come back with new skills or knowledge to change the situation in the fanfiction.
Mr. Krabs would surely be a main character. After all, he's the one who fires Squidward. He might be portrayed as the bad guy in the story, or perhaps there could be some backstory that makes his decision seem more understandable.
One possible plot twist could be that Sirius Black has a hidden motive for kicking out the Order. Maybe he discovers a traitor within the Order and by kicking them all out, he forces the real traitor to expose themselves in order to rejoin. Another could be that Sirius is being influenced by a dark force that he's unaware of, which is making him act out of character. For example, it could be a spell that was cast on him by a Death Eater.
There's no way for me to know the creator of 'the kicking fan fiction'. Fan fictions are often shared anonymously or by pseudonyms, and this title gives no clues as to who might have written it. It could be a young fan just starting out in the world of fan fiction writing, or it could be an experienced writer exploring a new concept.
Since I don't have prior knowledge of this 'the kicking fan fiction', it could be about a variety of things. It might be a comical fan fiction where the act of kicking leads to all sorts of humorous situations. For example, a character might accidentally kick the wrong person or object, setting off a chain of wacky events. Or it could be a more serious, drama - filled story where a character's ability to kick is both a strength and a source of inner conflict, like they have to use their kicking skills in a way that goes against their moral code in order to protect someone they love.
Well, there was this Squidward scary story. Squidward had been having nightmares for days. One day, while he was walking home from work, he noticed a strange figure that looked like him but with pitch - black eyes following him. Every time he turned around, it disappeared. But when he entered his house, it was already there, sitting on his couch, just staring at him with an evil grin.