Phizzy - There is real danger in employing too many of them, one JW I know got DF'd and 99% of his JW employess walked out that day!
That is a very real danger for any JW. I guess most do not expect to get disfellowshipped, but it can happen to anyone. It is a good warning for anyone fading that is reading this and employs JWs.
The other problem of having too many JW employees is they all expect to have the conventions and special months as holidays at the same time.