Square Tires

What if all our tires were square? Well, we couldn't go here or there! We couldn't go, well, anywhere! If our tires were square... We'd walk everywhere! There wouldn't be much pollution in the air! Airplanes couldn't take off anymore! We'd go back in time, to the dinosaurs! If tires were square.... We'd sail everywhere! Circle shaped tires wouldn't be found. Now, I am glad my tires are round.