The Lunchroom: HOO meets KotLC meets HP

Human AU
What if Leo met Keefe and the Weasley twins? Or Hermione sat down with Annabeth? What if some of toughest characters from each series sat together at lunch and contemplated raiding the new froyo machine?

I wrote this just for the sake of it, each "oneshot" (they're not really even that lol) is just meant as speculation for "what-ifs:" what if x met y? What would they talk about? What would their dialogue look like? I'm posting this just cause why not haha :)