HE thinks HE knows what HE is talking about.
Little does HE know, HE IS wrong!
Have you ever had a conversation, knowing you are absolutely right? I am not the person who will argue in most occasions, but if I do I generally know I am right.
It never fails, while watching TV or a movie, HE thinks HE knows who is on the screen. HE will start talking about the actor and what other movies or TV show they see in before. I tell him HE is wrong, then the actor's name. HE won't back down.
This is when I grab the iPad for Google. (I love Google, when it proves me right).
You would think after fourteen years, HE would know.