Alright, here are a few rules to survive: Get a accurate rifle, 100 - 300 rounds, depending on the caliber or millimeter. Fill a bathtub with water, turn off the lights, get some canned food, get a machete, crowbar, or ax, get upstairs, cut your long hair down, keep the radio on low volume, and wait it out, keep at least one person on guard at all times. Once you are sure it is going down, demolish the staircase.