Not hearing?

Ryan woke up from his nap the other day, and I didn't hear him right away, since I was typing something up on the computer in the den. (Really, I was doing work, not just playing on Facebook!) So, I did hear him and went into his room and he was very indignant and asked, "Your not hear me Mommy?" I told him that I didn't hear him right away because I was typing something on the computer.
So, later on we were playing and Ryan told me that I needed to take a "nap." So, I laid down and pretended to sleep. Then he told me to wake up and "cry." So, I did and he tells me, "I not hear you, I typing on the puter."
Oh, boy....