Very fanatical.
They joined in the 50s. I remember all the stories about many frineds , including our godparents, who fell away over the years and were never contacted again. That must nurture a bridge burning mentality. I even remeber getting locked out of the house on Sunday morning, and them driving away, because I said I didn't want to go to the meeting. I was five years old! They did come back for me though. Too strong.