(From "Big 3" number 1, 1940.)
This reminds me of my brother's favorite joke.
Q: What did the man say when a herd of elephants went by?
A: He said, "There goes a herd of elephants!"
Q: What did the man say when a herd of elephants wearing sunglasses went by?
A: Nothing, 'cuz he didn't recognize 'em.
We're simple people.