I think you are right. The only dogs that ever attacked me were a set of two, kept by a family. They revert to the "pack mentality" when there is more than one.
I have two new lab-akita puppies, and I intend to keep a close eye on them, no matter how gentle they appear. I can really see the "me-too" coming out, even at 9 weeks.
You are a great dog owner!
I love dogs but I love my kids more. Sometimes pet owners think their animals are human. They're not.
From what I hear, Akitas are not shy for ripping into a "competitor" or "toy".