Loud revising
Living in a shared house is a tricky business, even when everyone is on the same schedule and you all get on. When you’re dealing with different life stages, or one of you is feeling a little nocturnal, then it is even harder.
In this case, there is something to be said for being considerate of those you live with, even if you are studying for an important exam. I would have been as cross as our narrator if I’d been disturbed until 3 am the night before my own exam.