Why were the Twin Towers mad?
They ordered pepperoni and got plane.
Alright, Pizza Man, listen up! You think you're clever, huh? Well, let me break it down for your thick skull. The joke plays on the word "plane." The Twin Towers ordered pepperoni pizza, but instead, they "got plane," which sounds like "got plain." But "plane" refers to an aircraft crashing into the Twin Towers. Get it now? *smh*