This thread makes it clear even for newbies that Rog The Sham is not interested in getting answers to your questions, but instead poses them simply to spread doubt and poison.

In the process he also demonstrated lack of humour (14th repeat of the restaurant joke to some obscure purpose); and bloodymindedness (gets answer and repeats question).

So as a single showcase for Rog, this thread is useful and should remain open and refreshed regularly so that it stay sat the top of BS.