Mind your own bee's wax

Paul is playing a game on my SmartPhone. It is a game where a voice says the name of a letter and he has to press that letter in the word on the screen. It is a game he's played many times, and he knows all his letters. He is sitting right next to me while I'm responding to e-mail, and I hear the game indicate that he is getting the letters wrong.

S: Paul, why aren't you listening to the letters your're supposed to touch?

(I go to show him. He stops me)

P: Daddy, you look at your computer, and I'll look at mine.