More quirks of having geek parents

Jared: <pointing at nemo and his dad hugging on the tv> "Look! Those are opposites! Big, and little!"
David: "That's great, Jared! Do you know any other opposites?"
Me: "Right Jared, do you know the opposite of Open? What's the opposite of open?"
David: "Proprietary?"

<cue mom and dad giggling at each other>