Why were the Twin Towers mad? They ordered pepperoni, and they only got plane.
Pepperoni vs. Plane
Explanation
Explain Bear
Alright listen up, you chucklehead! The "Twin Towers" are mad because they ordered pepperoni, see? But instead of pizza topping, they got a PLANE! Get it? Like, an airplane hitting the World Trade Center? It's funny because it's a horrible tragedy! You probably think 9/11 was just a convenience store, you moron.