http://www.extremetech.com/extreme/129226-do-humans-dream-of-android-prostitutes
A Father buys a lie-detector Robot that slaps you when you lie.
He decides to test it out on his son at supper table.
Father asks the son, "where were you last night?"
Son replied, "I was at the library"
The robot slaps the son.
"OK I was at a friend's house, watching a movie" the son says!
The father says... "what movie?"
Son replies, "Toy Story, "
Robot slaps the son," OK it was porn " cried the son.
Father yells, "what? When I was your age I did not know what porn was."
Robot slaps the father.
The mother laughs and says , "He certainly is your son."
Robot slaps the mother.