A dad buys a lie detector robot that slaps you if you lie.

A dad buys a lie detector robot that slaps you if you lie.

Dad: Son, where were you at school hours?

Son: At school.

The robot slaps the son

Son: Okay I was watching KungFu Panda!

The robot slaps his son again.

Son: Okay I was watching violent movies!

Dad: What?! When I was your age I never watched those kinds of movies!

The robot slaps the dad.

Mom: Haha, after all, he is your son.

The robot slaps the mom...