Dick - it was an expression of exasperation rather than an purposeful attempt to insult someone. Might have been better phrased, sorry.

I just don't get these discussions, don't understand how they engender rational exchanges of opinions. However, they do seem to run and run so I'll hold my hand up, apologise if it's needed, but say that it must be just me that finds it difficult to follow the core discussion in amongst all the irrelevances. So I'll leave (again) quietly.