We drove parallel to railroad track every Sunday morning on our way to church and grandmas. To keep us occupied dad would have us look for hot boxes and give the hand sign (hold nose and point). Between calling out all the tiny towns we called out and that the trip was always fun and usually ended in laughter.
So miss the trains !
https://en.wikipedia.org/wiki/Hot_box
I had to look the term up.
Thanks—learned something new today!