I agree, two weeks should be enough to fix this problem. I ran into a similar situation with my girl when I gave her a big jucy bone for the first time. I am no trainer, and have limited knowledge about dogs behavior, but I did have a male dog before that lived to be amost 17 years old, so I learned a lot from him. So, my girl gets her bone, takes it to her big crate to eat it in peace. I get near her and want to pet her, she growls and adopts the typical body posture of defending her food while the growling goes on. I reach in, get the bone out of her mouth. She did not bite, but was trying to scare me non the less. After a minute or so, I give her back the bone, and stay seating next to her crate while she starts eating it, with my hand real close to her mouth. She keeps growling, but at that point I don't pay attention to her and let her realize that I am not interested in taking her bone, so she starts to relax. After 5 minutes or so, I would take the bone out of her mouth for 5 seconds and give it right back to her. The growling was still there, but would diminish each time. I did the same procedure with the next 2-3 bones I gave her, and now she understands that it's ok to have me or the wife take her bone away from her if needed. I could not blame her for acting this way the first time especially, she is a dog after all. Anyway, that was my little self taught training result...lol