Me: "Hmm, is it the dishwasher?" (His room is adjacent to the kitchen and the dishwasher was on)
Gage: "No, it's not that." He goes back in to listen some more. "Oh, I think it's you typing on the computer." He goes back to his room and he keeps going in and out to listen. "Nope, that's not it either. What is that sound?"
Me: I enter his room and close the door, so I can listen. When I realize what it is, I look at my child, hug him and smile at my baby boy
Now that's a sound he hasn't heard in quite a while. He must have got a real good map last week!