[From The Zombie Survival Guide, chap. 4, pg. 100:
No matter what your chances for survival are during an infestation, they will undoubtedly drop by 50 if not 75 percent when traversing an urban area.]
The front door opens.
The man who comes sprinting through is lean, carrying a pack on his back and a gun in his hand, and looks and smells like he hasn't had a lot of time for personal hygiene lately. He pulls the door shut with a slam and then spins around to point the gun in front of him.
And stops.
There's really no way to properly verbalize the what goes through a guy's brain when he's expecting to be faced with an empty building, or maybe some zombified former residents of said building, and instead is faced with a bustling, brightly lit bar.
So Tom won't try.
He's just gonna stand here for a minute with the gun out and his jaw dropped until his brain tries to catch up with current events.