From the Zombie Safety Guide
Zombie Scenario # 7 You find yourself holed up in an abandoned building in the middle of the night. You were forced to take shelter because there are Zombies crawling all around the street. You hear a peculiar banging coming from deeper within the abandoned building. You’re armed with a handgun, and only 12 rounds of ammunition left, What do you do? Do you investigate the sound, and chance being infected or attracting more by using your gun? Or do you ignore it and sleep the night away.
What would you do?
I’d create sound in some other area (away from myself) so that anything creating sound would be drawn there, away from me. Then I’d hide in a closet until daylight.