That's the strangest thing. I was wondering about what a train would look like with out rails the other day!
Your out a cool December day. Your in the woods, looking for a Christmas tree. It's 7:30pm but dark outside. You find a tree, then hear chug chug chug chug chug chug chug chug. The Thomas the Tank Engine song plays as you look in horror. This thing is chugging towards you. You have nowhere to run as it continues onward, it's bright luminous light has you froze like a deer in headlights. You don't stand a chance as it continues onward, making you it's Christmas meal.
Here is another fun video. A homemade steam loco https://img-9gag-fun.9cache.com/photo/aPRjZXP_460svvp9.webm