Just watching that video I see a dog that is in protection mode, which can be considered aggressive. It didn't help that she probably sensed the kids fear. If the girl didn't starting laughing or move quickly, I think it would have been slightly different. As much as I love Kira, per this video...it looks like the safest place for everyone and her is the crate when people are over. What would she have done if you walked over to the girl with you? Did she have any contact with the girl before the video?
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD