Men are so simple of mind, and so much dominated by their immediate needs, that a deceitful man will always find plenty who are ready to be deceived.
Social engineering is using deception, manipulation and influence to convince a human who has access to a computer system to do something, like click on an attachment in an e-mail.
Always remember that as long as other people are gullible, there's no limit to what you can achieve.
There is to some men a great Lechery in Lying, and imposing on the understandings of beleeving people.
besides, how can you cheat a cheater?
Cunning has effect from the credulity of others, rather than from the abilities of those who are cunning. It requires no extraordinary talents to lie and deceive.
Since the child knew his parents would give in, he tried the same trick again and again.
