Another memory about "Life Is Just Fine On The Farm," which one of my grade school vocal music classes sang: In one lyric, the city dweller-turned-farmer muses about how he "used to love the city and my cozy two-by-four."
The teacher, Mrs. S., asked the class, "What's a two-by-four?" Not being well-versed in real estate, no one guessed correctly.
Mrs. S. left us to wonder.