Hi, I have a 6 month old puppy. I was out of town for 10 days and her dog walker stayed at my house with her. I came back two days ago, and since I've returned she's been displaying very scary food aggression. She now growls at me when she is eating if I walk near her, and she growled at me and bared her teeth when she was chewing on a bone. I took the bone away from her and she tried to bite me. As soon as the bone was out of her sight, she was back to her normal self again. I take things from her mouth all the time (she's a puppy so often has something in her mouth she shouldn't) and she's never growled at me before. I'm really distraught that she would threaten me like that, and I want to get this solved before she gets any older. I should also mention that I live in Bangladesh (I found the pup abandoned in a trash pile when she was about a month old) so hiring an animal behaviorist is not an option for me right now. Please help!