Scenario A: you’re in your own home, a single family dwelling in a high density neighborhood. 10pm. Roving gangs are cruising the streets looking for “targets of opportunity.” Your family is inside your redoubt. You’ve had an hour’s warning. There are no police to be seen. What gun or guns and ammo would you deploy? What strategy? (Remember: you have multiple potential entry points.) Scenario B: you own a retail business. Looters roam the streets. Your store has a plate glass windows and three points of entry: front, rear and a fire escape. You had a 30-minute warning. Two employees have decided to stay with you. What guns and ammo, what strategy?