A man buys a lie-detecting robot that slaps people every time they tell a lie…
Dad: What were you watching?

Son: Kung-Fu Panda

*robot slaps son*

Son: Ok! It was an erotic movie.

Dad: WHAT?! When I was your age i didn’t even know what an erotic movie was

*robot slaps dad*

Mum: HAHAHA!!! He’s your son after all

*robot slaps mum*