Funny Joke That Was Sent To Bobby!

I am always telling you how funny my Bobby is. Today he showed me this joke that someone sent him. He has been laughing at it all day so we figured we'd share it with you. The Lie Detector A father buys a lie detector robot that slaps people when they lie. He decides to test it out at dinner one night. The father asks his son what he did that day. The son says, "I did some schoolwork." The robot slaps the son. The son says, "ok, ok. I was at a friend's house watching movies."Dad asks, "What movie did you watch?" The son says, "Toy Story." The robot slaps the son. The son says, "ok, ok we were watching porn."Dad says,"What? At your age I didn't even know what porn was"! The robot slaps the father. Mom laughs and says,"Well he certainly is your son"! The robot slaps the mother........