A: Why is there so much crime? B: Because parents don't teach their kids right from wrong. A: Is that it? B: Also, there aren't enough police. A: But there are a lot of police. B: There's only one police officer per 100 criminals. A: Can't we hire more police? B: No. It costs too much money. A: Doesn't crime cost more than police? B: Yes, it does. A: So it would be cheaper to hire more police? B: Yes, it would.