I have 2 dogs and recently took on a 3rd. A 10 year old staffy. She is amazing with everything, kids, dogs etc. Yesterday she had a fight with my other dog. My other dog doesn't like to share and they both went for the same bit of food, he snapped at her and she went nuts, latched onto him and wouldn't let go of him for a few seconds. Was she just doing what any dog would do? She is not aggressive at all and is not possessive with food. She's only been here since Thursday so are they just working out their pick position? Any advice would be great fully received