The boy was having a robot which slaps people when they tell lie and he wants to test it. So he kept it near him during the dinner where his mom and dad were present.
Dad: What were you doing in the room my boy?
Son: Dad, I was watching a movie.
The machine slaps the boy right on his face. The boy realizing that machine works, he tell the truth.
Son: I was actually watching a porn movie.
Dad(Angrily): What!! You should not be doing that all right? When I was young like you I never use to watch such stuffs.
Machine slaps the dad hard. He was nervous then.
Mom: Don't be so harsh to our son. After all he is your son.
Machine slaps the mom too very hard.
