Andrew's First Phrase

Andrew gets a little obsessed with the vacuum cleaner. He likes every single thing about it: it makes  noise, shoots air out of the vent, has buttons, and it rolls all over the floor like a toy and he can chase it. Today, as I finished using it and was putting it in the closet, he followed me and asked, "are you all done?". A four-word phrase! It's one I use on a daily basis with him so it's definitely something he has heard many many times. I quickly got over my shock and said, "I'm all done." and he ran away crying.