So with my vast new-found knowledge, I imagine that I pull my train off the main line onto some arrival side line. The little switcher comes out to take my caboose over and out of the way to some caboose place. Already I'm baffled. Assuming I already have the tech needed to operate two locomotives at once, how does my switcher uncouple the caboose? How do it works? Are these little details actually documented anywhere, or do I simply need to get old and gray and learn it all the hard way? Oh wait, I'm ALREADY old and gray--yet I don't feel I have a head start.