I went to go put something in my room, and a really loud, ominous howl, almost a drone like sound even came from outside. I realised this actually happens regularly, and at night and either sounds like a giant slug, or an aircraft that's 2 inches off the ground. An, ALIEN aircraft.
So something that sounded like a train just passed. Huh.
...And back again, this time more howl-y.
Time to get off those drugs quoc.