I'll post what I've posted on these threads for over ten years here.
When the freight trains start going by my house with less than a three-man crew I'll start worrying.....
The freight trains that go by most people's houses in the U.S. now have less than a three man crew these days in case you didn't know...
Most freight trains on most railroads today have a crew of two: one conductor and one engineer.
From:
http://en.wikipedia.org/wiki/Conductor_(transportation)
Don't worry son, the union will take care of you...