Lie Detector Robot
Dad buys a lie detector robot which slaps people when they lie.
He decides to test it at dinner.
"Son, where were you today?"
The son says, "At school, dad." The robot slaps the son. "OK, OK, I
watched a DVD at my friend's house!"
"Toy story." The robot slaps the son, again. "OK, OK, it was porn,"
cries the son!"
"What! When I was your age I didn't even know what porn was," says the
dad. The robot slaps dad.
Mom laughs, "Ha, ha, ha! He's certainly is your son." The robot slaps mom.