OMG...This is quite the post. I don't know whether to laugh or to feel bad for the poor women that subject themselves to this crazy ritual. This is such primitive thinking.
How do you give the appearance that you are not conducting, when you are conducting? I guess it's like the days when you were in school and chewing gum. We all chewed gum, but did so in a secretive way. Perhaps the sisters should turn the lights off in the room when the Service Group is being conducted. That way they can hear the voices but not see who apparently is in the room, or who is conducting.