At school Lil' Johnny was 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
Lil' Johnny decided to go home and try it out. He went home,
and as he was greeted by his mother he said, "I know the
whole truth." His mother quickly handed him $20 and said,
"Just don't tell your father."
Quite pleased, the boy waited for his father to get home from
work, and greeted him with, "I know the whole truth."
Johnny's father promptly handed him $40 and said, "Please
don't say a word to your mother!"
Very pleased, the boy was on his way to school the next day
when he saw the mailman at his front door. Lil' Johnny
greeted him by saying, "I know the whole truth."
The mailman immediately dropped the mail, opened his arms
saying, "Then come give your real father a big hug."