About 8 years ago, My son and I were riding Amtrak from Denver to Oakland, and right in Roseville, the train ran over a hobo on the tracks. Delayed our trip by 3 or 4 hours. Tough to explain the situation to a seven year old.
So, if in your post race exhaustion, you need to lie down-don't do it on a railroad track-unless the California Zephyr has already passed for the day.