At school, a boy is told by a classmate that most adults are
hiding at
least one dark secret, and that this makes it very easy to
blackmail
them by saying, "I know the whole truth" even when you don't
know
anything.
The boy decides to go home and try it out. As he is greeted by
his
mother at the front door he says, "I know the whole truth." His
mother
quickly hands him $20 and says, "Just don't tell your
father."
Quite pleased, the boy waits for his father to get home from work,
and
greets him with, "I know the whole truth." The father promptly
hands
him $40 and says, "Please don't say a word to your mother."
Very pleased, the boy is on his way to school the next day, when
he
sees the mailman at his front door. The boy greets him by saying,
"I
know the whole truth." The mailman drops the mail, opens his arms
and
says, "Then come give your FATHER a big hug."