I remain open to the possibility that someone can scientifically prove that there is a god but so far there has been only prejudice, defensiveness and no evidence for the existence of any deity. This is also Dawkin's position and I find it rational.

That is absolutely right. I could add, cynically, that the possibility is exceptionally remote, but the fact that I accept the possibility at all places me, on the rational level, high above those people of faith who are so steeped in their unjustifiable certainties.

As for fingers/thumbs up own bums, concerened, I think you may be mistaking us for Catholic priests, whose fingers are generally up someone else's bum.