In Chicago home invading thugs are using assault rifles, and killing residents...at 3am sometimes.
Panic rooms could be set up at not great expense.
Master bedroom upstairs could be made into one...actually, by installing a specially designed grill on the staircase, thugs couldn't get upstairs.
Single storey home, master bedroom could be made a panic room...reinforced steel door frame and super strength door.
Fridge, satellite phone, cell phone, torches, battery-operated alarm/siren, food, water, ensuite or portable toilet facilities, etc.