There was a man who only cared about money. He didn't even spend money to buy bare necessities of life. He collected a large sum of money. He spend all his money to buy a lump of gold. Man buried that gold in a secret place in his house. Everyday he used to check that lump of gold daily to make sure that it was still there. One day one of his helper saw him examining that gold. Man was not aware that he was being watched. After some days man had to go away from home to do some work. Helper knew that and dug out the gold and fled. When he came he went to check his lump of gold and found that it had been stolen. His hard earn wealth was now stolen by thief. Man cried in grief. Man neighbors learned about his loss. His neighbors came to console him. They saw man's grief and advised him to bury a piece of stone in that hole in place of that gold. Because he never intended to use that gold. So, there was no difference between lump of gold and piece of stone and he should regards it as his gold. 
When ever we take action against another person we should ask our self if we are doing right thing. What if same thing to be happen to us would we still feel same?? If we deceive another its like deceiving ourselves because with time dishonesty can become a habit. 