They're kinda like zombies, only lethargic. Lazy zombies. They pretty much leave you alone. They won't stagger after you and try to turn you into one of them. Well, most of them won't. Dormant zombies. Waiting for the code that will trigger their emergence into an active zombie state. "Now boarding zone three." There they go! You probably think they're staggering because of the suitcases, but I can see through that little ruse. Because of the putrefying flesh falling from their skulls. Explain that to me, smart guy.