A father buys a robot that slaps people when they lie. He decides to test it out at dinner one night, so he asks his son what he did that afternoon.
The son says, “I did some schoolwork.” The robot slaps the son.
The son says, “Ok, Ok. I was at a friend’s house watching movies.”
The dad asks, “Really? Then what movie did you watch?”
The son says, “Toy Story.” The robot slaps the son.
The son says, “Ok, Ok, we were watching porn.”
The dad says, “What? At your age I didn’t even know what porn was.”
The robot slaps the father.
Now the mom laughs and says, “Well, he certainly is your son.”
The robot slaps the mother.