[rqebmm]

a) The biggest instigator by far is a dog we adopted at the age of 3 who was abandoned in the street and then spent another 9 months in the dog shelter. Each dog's mileage will vary.

b) I've worked with kids for years, and many display the exact same behavior, regardless of the particulars of the "shiny object". Fighting does not necessarily mean a physical altercation.

c) I've studied animal behavioral psychology, and have yet to find anything I learned that fails to apply to humans. We vary by degree, not kind.