Mr John discovered that he was feeling pain all over his body, then he went to his doctor for check-up. After the diagnosis, a conversation ensued:
Doctor: Mr John, I discovered that you have high blood pressure. Now take this bill. That is how much you are going to pay for your check-up. Besides, whatever will give you heart attack again, do not think about it but throw it away to avoid reoccurrence of heart attack.
As Mr John saw #150,000 on the bill, he tore it and threw it away. The doctor asked him why he did that, he said, "Doctor, I only followed your intruction. You said anything that would give me an heart attack, i should not think about it but throw it away. I did that because the amount i saw in that bill would give me another heart attack.