[Callisto is not trying to sleep. Her sleep schedule is erratic, and not bound by such mundane things as "night" and "day"; therefore, when he starts calling for Healy, he doesn't disturb her as much as he might other people.
Does this stop her from making her way to the door of the abandoned building she's reluctantly squatting in, pulling it open, and screaming out just as loudly:]
iii
Does this stop her from making her way to the door of the abandoned building she's reluctantly squatting in, pulling it open, and screaming out just as loudly:]
Shut up!
[No. It absolutely does not.]