I have a dog

William told me this morning on the way to school that he has a dog.  When asked what his name is and where he lives, William told me "His name is Dobson.  He lives in Heaven."  Upon which (and for the first time) he asked, "When is Dobson coming back from Heaven?"  He paused for a bit and then continued, "after the dogs bark at him, he'll get on an airplane and come home."