People
Time flies like an arrow. Fruit flies like a banana.
— Groucho Marx
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
This wordplay turns on the double role of familiar words. In the first sentence, time is said to move swiftly, like an arrow; in the second, 'fruit flies' becomes insects with a taste for bananas. The humour comes from grammar suddenly flipping under the reader's feet.
Context reviewed