Okay, please do not put a dog on her side to make her "submit". This is old alpha theory and does tremendous harm to your relationship with the dog.
What she was doing is called "resource guarding". It is a very common thing and not a sign of dangerous aggression. It is also quite treatable, but not by alpha rolling the dog. Search this forum for "resource guarding". There are lots of good threads with great advice that will help you and your pup.
What she was doing is called "resource guarding". It is a very common thing and not a sign of dangerous aggression. It is also quite treatable, but not by alpha rolling the dog. Search this forum for "resource guarding". There are lots of good threads with great advice that will help you and your pup.