For newcomers to this board, I feel obliged to point out that two of it's members (i.e. Mince and peter) are related by birth.
This information may assist you in making a modicum of sense out of the previous half dozen posts, and a number of others throughout these forums. It is not always apparent which is the parent (see what I did there?), but if you can just go with the flow, it all gets less disturbing after a while - a bit like a good anaesthetic.