Hey all, So things have generally been coming along nicely with Kenzii's training. She's been getting better with men and strangers, and interacting well with other dogs. Generally. Lately we've been noticing some aggressive behavior in regards to toys/food and other dogs. She will let me walk up and take a toy out of her mouth, or food out from under her nose, no problem. But as soon as another dog looks at her goodies her hackles are up and she gets very defensive. Just the hackles didn't seem like too much of a problem, but today she started actually dropping whatever toy she had and actively chasing off the other dog. Also, when the other dog had a toy in his mouth, she approached and blatantly, aggressively attacked him for it (they were both fine, but I was definitely a bit shaken by her behavior). So I guess I have two questions. First, what are possible causes to this behavior? Is it just a dominant attitude or her personality, or could there be underlying factors? And second, what can I do to prevent it? Today when she attacked the dog she was immediately taken into the house and the toy was given to the dog who had it originally. Is there any possibility my behavior is enabling her behavior? Any advice would help! Thanks again guys. You make my puppy owning easier.