When I was seven(?) we were often assigned to write short stories. One time however, they forced these dull "inspiration cards" upon us which we had to write based on. The story went from a guy who took his boat (which was what the card forced us to write) to that a storm erupted, he was transformed into a random character from Harry Potter, and was saved by an elephant by the name Glas (the Swedish translation for glass). Then his language teacher arrived at the elephant's place and just said "alpha", whereupon the main character started rambling the entire alphabet. Another story I wrote when I was ten, was something we were assigned to write based on a picture featuring a lot of people. Among other things I wrote, I took particular interest in one part of the picture where a few kids were fighting about a pork sausage. I didn't know the meaning of the words at the time, but I had accidentally written something along the lines of, "Go shit yourself you fucking British cocksucker!" I wasn't allowed to submit that part to my teacher.
In Swedish schools, it's quite common to have a class council where the pupils are allowed to discuss relevant matters. Having participated in these for five years at the time, I felt it was kind of obvious what subjects they used to discuss. This however, did not stop my teacher from assigning a task where we should write about a fictional class council. No, obviously I didn't do the task properly. The story, which featured a fictional version of my class, started with that everyone had gathered for the council. When the chairman opened up the discussion, the fictional me immediately started shouting, "LAOOUÅUÅ!" which distracted everyone else. My teacher (in the story) got mad at me for this and told me to shut up. I did for a few seconds, but then I would again, even louder, scream, "LAOOUÅUÅ!" This was just too much, and my teacher (in the story) kicked me out of the classroom and everyone else cheered. My teacher (in real life) then got mad when I submitted the story.
Another story we were assigned to write was about autumn leaves. The story can basically be summarised that the autumn leaves all wanted to be the most beautiful, whereupon they started insulting each other with terms such as "disgrace" and "fucking moron". At least I had a colourful vocabulary for swear words when I was little.