I must get up to Edinburgh one day, maybe hop on a train.
When I'm confronted with non-thinkers who 'would shun their children', or 'would die rather than take blood', and so on, I ask "but what if the rules change and you no longer have to shun or refuse blood, would you change your view too?"
If they say they would change (as they have to, since they are mandated to let the GB think on their behalf) then I point out that actually they are following men then, and not the Bible.
It rarely triggers any reaction, but then again what am I expecting from someone who can no longer think?