First of all, does he really expect to make it out of the place carrying a giant seat?
And secondly, I really want to know what was said to him by the guards who figured out his dastardly plan.
Security guard: "Sir, is that a chair? Are you carrying a chair under that blanket?"
Security guard: "Come with me, sir."
Patrick: "Dagnabbit! I would have gotten away with it too if it weren't for you meddling