Alastor Moody has posted on Harry Potter's timeline: Potter! Are you awake?
Harry Potter: Yes, Professer...
Alastor Moody: Good, you might be killed at any minute.
Harry Potter: Err... What happened?
Alastor Moody: Nothing, just that you could be killed at any moment in general.
Harry Potter: Umm...
Alastor Moody: CONSTANT VIGILENCE... Now go get some sleep, Potter. Or rather... Don't.