I watch people getting hit and killed by trains on YouTube. Guess you were one of the lucky ones. Most of them look like a piece of wet spaghetti when it's over. With extra tomato sauce.
How do you not see that coming? Right off the bat there's train tracks and you're on them. Trains are like as big as buildings and a mile long. The ground shakes, they have a horn. There's like a rush of wind generated by them. In short, they are one of the most noticeable moving man-made object you will ever encounter during a normal lifetime.