We had a similar problem with one of the neighborhood kids (age 11). She was scared to death of our boxer. When we caught her throwing clumps of dirt at the dog (who was resting in the grass--in OUR backyard), that was the last straw!!! She too had had two dogs of her own, a chow and a cocker. Neither of those were vicious. (We later found out that they gave their babies away before they moved b/c they didn't want the new backyard destroyed!!!! )

Now, if the little girl comes over to play with my sister, our dog is kept under close watch. Not that she'd attempt to hurt anyone, but rather to keep them from hurting her! Our boxer is very kid/cat friendly. I guess her size and looks intimidated the little girl.

I'm sorry I can't offer more advice, but I can sympathize w/ what you are going through. Good luck!