Video Gaming Friend

My husband has a friend who simply can not get enough of video games. He is constantly talking about new games that he can play on his computer. Sometimes he will talk about gaming desktop computers with my husband all day. I think that my husband even gets a little tired of hearing about it, but he doesn't say anything to his friend. His friend is a really nice guy, and he has been really good to our kids. Then, after they talk about all that stuff they start talking about football, baseball, basketball and alike. Take note, they both watching the game and yet they talk about it. But there is one topic that I kind of tired listening from both of them and that is about math.