I never cease to be amazed at how much the JWs resemble the Pentecostal movement - especially the fear of demons.
That they have adopted the Procter and Gamble myth should come as no surprise therefore; I first heard of it from a Pentecostal friend. The whole thing sounded suspicious to me; I advised caution or that he at least contacted the company before boycotting their products (to no avail, I might add!) I would advise anyone who perpetuates this myth to stop doing so; it can get you sued!