Mobian Tales Chapter 01: Introductions
One overlander in particular has befriended Echo; Maverick. Bullies usually can't find him to pick on him, but there are some situations he isn't able to leave (such as being in class and having paper balls thrown at him, but then that happens to anyone). A major storm hits while the kids are at school, though. Sheets of rain, loud thunder, strong winds. It's bad enough that the school has nobody going home even when school is over. The teachers, of course, reassure the kids that they will be able to go home in a couple hours. So in the meantime, board games and such are pulled out for everyone's entertainment.
....when did Joe show up at a school to hand out water balloons? Why is he even there? Well, that is just how he is. And now he is stuck in the school after hours. Unless he enjoys being drenched to the bone while being tossed around like a tinker toy.