Resource guarding bite
My dog Stella is 8 months old. She’s never had a problem with guarding her kibble or toys, but loves large chews like collagen chews or beef hide and has them regularly. Will sit on the couch near us while she eats them and sometimes brings them to me and drops them on me to play with them or throw them for her. The only resource guarding shes shown is if she has something she shouldnt like a tissue or sock and we try to take it from her she growls. So we stopped doing that and now offer a treat as a trade, which usually works.
So today i’m not sure if it was a perfect storm of a weird situation or what. My fiance gave her a cow ear treat and she was eating it on the couch like she usually does. I got up from one end of the couch and went to walk by where she was sitting to go sit closer to my fiance. I thought she was done eating the treat as i didnt see it anymore but apparently it had just fallen on the floor where i was walking. I guess she took that as i was going to take her treat and growled and bit my hand and broke skin. It all happened so fast and was so unexpected but i dont think she was latched on and did not continue trying to bite me. We immediately put her in the crate so i could wash up my hand.
I am now really shaken by this as i mean she play bites still like any puppy, but nothing like this has ever happened. We plan to look into a behaviorist or trainer for guidance, but im worried this is just going to happen again. She is otherwise a very friendly playful pup. Is there anything we can do immediately while looking into a trainer?