"since Gallstones pass naturally of course it's possible that Gallstones can pass during a liver flush"
Hmm, I think you're being a bit disingenuous here.
Are you really saying that the hard stones, passed by this 86-year old woman during a liver flush, which she put in a jar and which caused her doctor to go "white in the face", were just coincidentally passed while she happened to be doing a liver flush, and that their passing was in no way connected to the fact she as doing the flush? Come, come, Sir!