Dad brings home a robot that will detect if someone is lying.
At the dinner table he asks his son, "did you do your homework?"
His son says yes and the robot slaps the son.
Father asks, "what were you doing if not your homework?"
Son replies," I was at Steve's watching a video."
Father, "What video"
Son, "Toy Story" Robot slaps the son.
Son, "aright I was watching porn."
Father, "At your age, I didn't even know what porn was." Robot slaps father.
Mother says, "well father like son."
Robot slaps mother.