…that slaps people when they lie. He decides to test it at dinner. “Son, where were you today?” The son says “at school dad.” Robot slaps the son! “Ok, I watched a dvd at my friends house!” “What dvd?” “Toy story.” Robot slaps the son again! “Ok, it was a porno” cries the son. “What! When I was your age I didn’t know what porn was” says the dad. Robot slaps the dad! Mum laughs “HaHaHa! He’s certainly your son.” Robot slaps the mum!
(Stolen from fmttm)