You're absolutely right, of course, Dave. Thanks for reminding us of the point of this thread!

Yesterday, I was wandering down Market Street, in Manchester, and observed a bloke wheeling a massive loud-speaker around on a trolley. Issuing from the loud-speaker was the voice of a woman singing a syrupy song about Jesus. At the same time the trolley wheeler was bellowing into a microphone something about Jesus loving everyone (there was a lot of distortion so that his exact message was lost). As I neared Piccadilly bus station I noted another bloke waving a book (almost certainly a Bible) and shouting something about ... yes, you've guessed it ... Jesus! I noted that neither of these fervent fruitcakes wore a lab-coat and, as far as I could tell, neither of their harangues included any mention of Charles Darwin, Albert Einstein, Newton's Laws of Motion, the Laws of Thermodynamics etc.