A man buys a lie detector robot that slaps people who lie.
So he decides to try it out at dinner.
DAD: Son, where were you today during school?
SON: At school robot slaps son.
SON: OK, I went to the movies.
DAD: Which one?
SON: Toy Story robot slaps son again.
SON: OK, it was A Day with a impurity Star.
DAD: WHAT?! When I was your age, I didn’t even know what impurity was Robot slaps dad.
MOM: HAHA!! After all he is your son, Robot slaps mom.