[lolabella]

My husband and I have just witnessed a concerning behavior from Mia. My husband had just returned from the grocery store with a bag, placed it on the couch and our cat was peeping inside. Suddenly Mia snapped at the cat from the ground, growled and bit his leg. She did not bite hard or anything, but this was not play behavior. She was plainly aggressive. I guess she thought there was something for her in the plastic bag.
This aggressive behavior concerns me because we are going to be bringing a new pup home soon, and I don't want Mia to become possessive and have problems. Has anyone witnessed a similar situation? How do I deal with this?
Mia is a very sweet girl, and it is scary to see her snap into an aggressive character without a warning.