Because, Zay, it was a train. What can I say? I don’t make these things up out of the blue. The train passed, I heard the whistle, the broom fell, etc etc etc. I only write about what I experience. If I’m making something up out of whole cloth I put it in one of my books of fiction or a short story. I write those, too. Trains are important ideas for many people. What do they mean for you?