1. Hard Rooms: These are mostly impermeable rooms where you can shelter out of sight. They are made of materials such as wood, steel, or tile that are more likely to stop a bullet. Bathrooms, pantries, or walk-in coolers make great hard rooms. 2. Stairwells: Walk your stairwells. They can be unpredictable in design, not go straight down to the ground floor, zigzag, or break off onto another floor, forcing you to regain entry elsewhere.
