My 22 week ok lab puppy is always on the scrounge for food 24/7....is this what they do ??? She is constantly looking for food even on walks and will literally eat anything.... my hubby says this is what puppys / dogs do and will eat themselves til they are sick . I am new to dogs so dont really have a clue. She will bolt her own food down so quick but has no problems if I touch it, take it away etc but god help me if she manages to steal some of our food...she will turn proper nasty until she has completely swallowed it and then she is back to her normal happy self. Her full on nastyiness scares me as I do generally fear that she will proper bite me as she goes into full snarl, hair up etc......please help ???