Ethan Talking???

So I came home today from a long day of work... I open the front door and can hear Signing Time on the television. Dave was watching the one about "school." I told my husband how awesome he is that he will watch it with Ethan. Then he told me that when Rachel said the word "backpack" that Ethan repeated her as clear as anything. I am sorry, but it is really hard to believe that a 10 month old is saying "backpack." But Dave swears... whatever...