Seriously though, trains quieter than you think and faster than you expect. My Grandfather was an engineer on the Pennsy and RR lines, we were taught very young about trains and what not to do...
My dad worked for the Illinois Central RR and he taught all of us NEVER, EVER mess with a train. They WILL ALWAYS WIN. He saw his share of these things. He also told us to, whenever at a crossing, to stay at least two or three carlenghts back. That was to allow an escape distance if, for some reason, the rail cars jumped the track or their doors fell off. I still live by that.