I am so upset right now. Axel growled at another dog who was chasing him while he was trying to chew on a bone. I kind of wrote that off as I assumed it was because he was being chased. But tonight we gave him a raw bone and my husband gave him a pet while he was chewing it and he growled at him. How do I stop this behaviour? When I went to take it away I used treats in exchange for the bone and said leave it. It took a few times but he did end up leaving it but then ran back to his bone right away but we had already picked it up. I don't know what to do. I'm just so upset. Never having him growl once since getting him. And then having him growl at us... It's so so upsetting.