Imagine this: it’s the hottest day of the year. (Or, since we’re getting into Fall, the coldest.) Someone from your utility company calls to say they’re about to cut off your power. You check the caller ID, and it looks like the right number – at least, it’s in your area code. You know you’ve paid your bill, and you can’t imagine what happened – but you also know you can’t afford to lose power. So what do you do?
The caller tells you: I can stop this, but only if you pay me. And, naturally, he tells you how.