Hi,
So we got our greyhound Merl around 8 months ago and he's been great. We have worked through multiple issues and built a lot of trust over the last few months. He is comfortable with us and sleeps with us on the floor sometimes (he isn't let on to the bed/sofa).
However, he had a tendency to resource guard a lot. He allows us to touch his food bowl without any problem but any high value treat is out of the question. He's getting better with trading up training but it's a slow process understandably. Yesterday, we were out on our walk and he managed to get hold of a raw meat container in his mouth. I tried to get him to drop it(with treats and without by telling him to leave it) and he became really aggressive towards me. Barking, growling, baring his teeth, but never lunging at me. Finally, after I stayed calm and threw a few treats on the floor as well, he came over to me and took a treat from my hand. He has behaved fine afterwards and even fell asleep in my arms once we got home(both of us did in fact after all the stress).
I know this behavior can be explained by the high value of the food, but should I be worried? Will this have destroyed a lot of the trust that we've built up over the last few months? Is there anything I can specifically do to help him understand that I'm not a threat to him so that he isn't as aggressive? Thanks.