The Final Departure

So, you're the new night-shift station master. Listen carefully, because I won't be explaining this twice.
Your Duties
The first things you do are: check the timetable, route trains, sell tickets, make announcements, resolve any queries passengers might have, inspect the platforms, and ensure everything is in order.
Don't worry, very few trains pass through here at night.
A Few Things You Should Know
Now, there are some things that you'd learn when you've been working here for some time.
If you hear someone calling and laughing, don't go looking. There is nobody there.
If a passenger behaves strangely, handle it. Don't ask unnecessary questions.
And if you see something you can't explain...
...ignore it.
Most things around here are best left alone.
About the Train
Around 2:30 in the night, you will see a train arrive that isn't on the timetable.
Don't worry about it.
Don't signal it in. Don't try to contact the driver. Don't ask the passengers where they're going.
It arrives. It stops, and eventually... it leaves.
You keep doing your job.
That's all you need to know.
Follow the procedures, keep the station running, and you might survive the night.
Now Get To Work,
Your shift starts soon.