Sorry, but it seems to me the civilized response should have been "Sorry, I won't take any more pictures" regardless of citizenship or chicomness or russcomness or Americomness or Islamness.
We speak so firmly about un-enumerated personal rights, yet...
(I know in the US if you're in a public place, you have no right to complain about picture-taking, but if a person doesn't want you to take pictures of him, that ought to be respected, "legalities" aside. Don't know how that's covered in formerly great Britain.)
That's the way I see it.
Terry, 230RN