The Lie-Detecting Robot

Mother, father, and a son. Father purchased a robot that can detect lies. The robot slaps when you lie.

During dinner time: Father: Son, what have you done today? Son: I watched Netflix, Dad. Robot: Stood up and slapped the son! Son: Okay! Okay! I watched porn, Dad. Dad: What? You watched porn? You are only 14! I never knew porn till I was 18 years of age. Robot: Stood up and slapped the Dad! Mother: started to laugh and said, "Sure he is your son!" Robot: Stood up and slapped the mother!