A man buys a lie detector robot

A man buys a lie detector robot that slaps people who lie, and be decides to try it out on his son during dinner.

“Where were you during school hours?” He asks.

“At school!” His son replies.

The robot slaps the boy.

“Ok I was at my friends house….” His son says.

“What were you doing there?

“Reading comics!”

The robot slaps the son again.

“Ok ok!! We were watching an dirty movie…”

“What?? I didn’t even know dirty movies existed when I was your age!” The dad exclaims.

The robot quickly slaps him.

His wife laughs and says, “Wow, he really IS your son-”

The robot slaps the wife.