I am going through what carey's owner is going through right now, my pit/chow mix (looks a lot like carey) that i have had since she was a pup is very food agressive and i have tried everything to stop her, she is also very nervous around my one year old, she hasnt bit him yet but i believe that she could so i am going to send her to live with my parents because i can not take the chance that she wont bite him. No matter how much you love you dog your kids and family should always come first, any dog that bites a kid , especially your own kid, needs to be put down, how are you going to feel is she does it again and doesnt just leave a scrape, next time she could kill your daughter, Really think, is this dog really worth your childs life? It kills me to send my dog away i will probably cry for weeks but you gotta do what you gotta do. Sometimes you can do everything in your power to make a dog a good dog, but its not always possible.
This is just my opinion, i am not trying to upset anyone, its your decision.