Next time I get a "sales call" on my phone, I will advise the salesperson on the other end that I will have to have $2.00 deposited electronically into my Pay Pal account before I'll be able to respond to any questions. I'll check my account every few hours. When the money has been deposited, I'll answer one question.
The next question will cost double ($4.00), the next question, $8.00 and so on.