Crossovers That Should Not Be 22: Pushing it over the Hedge.

[Rajvik]

While they say too many crossovers can ruin a fic, that doesn't really apply if you're writing a crack-fic anyway. So you can add as many crossovers as you like, the weirder the better. Picture this:

During the summer after Harry's 4th year, the Ministry tries to get Delores Umbridge into Hogwarts as the new DADA professor. Dumbledore counters by hiring (Crossover Character) to fill the position instead. The Ministry then tries getting her in to teach a variety of other Elective courses (including some that haven't actually been taught in centuries or have only been taught in other schools until now), but Dumbledore keeps finding (Crossover Characters) to fill the slots, and then makes the Ministry boost the Hogwarts budget in order to pay for all of these new Ministry mandated courses. You can bring in as many weird crossover characters as you want while sticking Umbridge in some truly horrible job that'll keep her busy and miserable (by having Dumbledore 'regretfully' fail to fill the teaching position for an obscure course with an incomprehensible doublespeak title).

If we were to do this, everyone would have to pick a teacher and a class, like
Harry Dresden to teach DADA and then I write those scenes while say Rob chooses Negi Springfield to teach something else AMD write those scenes