Having met Sir I will certainly say he is a sweetheart. I don't see a mean bone in that dog's body. He's 100% puppy and I can see how he'd be easily startled. Heck, Mufasa jumps up & barks if he's startled... don't see him harming/eating anyone anytime soon.
I'm still hoping it works out for Sir and your friend, but if it doesn't hopefully we can find something else, and quickly.
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