[And now Nodoka will develop some sort of underlying fear of leaving that window open, just in case someone decides to drop in and ends up having their necks attacked by the window frame.]

I can s-see why you would feel that way, I d-don't imagine many people get to experience how it feels to have a w-window frame drop down on their necks. M-Maybe that's what Death's scythe really feels like! [Well probably not, but she's trying to lighten the situation.]