Well then, I guess I'll just mosey on out of here. Once again I read all about how fantastically well behaved your guineas are and not a word about possible solutions to appease your neighbor. Not one of my family members, child or adult, should feel anything less than 100% safe when they are on my property. What I said still stands - if they were on my property and my grandkids were afraid of them, the shotgun would be getting a workout.
I sincerely wish you the very best. Hostile neighbors are no fun - I've got one on the south side of me now and I've done all in my power to make sure she isn't even inconvenienced by my birds. Our issue is a totally personal one (she took exception to something I voted for when I was on the town council and let the whole world know it by standing on her side of the fence calling me every name she could think of) but I darn sure am not going to toss fuel on the big fire she has under her hiney.
And I, for one, would enjoy seeing another picture or two of your guineas. I've never had them, but the people I know who do really like them for bug control.