I suppose there may be only a few, very rare cases, of people who have a reason not to leave but also don't find a reason to baptize.
I did meet someone who was in what we would call "a limbo". He was not a born-in, but a man in his late sixties who was being courted into the Watchtower (he was even offered a wife). This man found it difficult to go on field service, because of his poor health, so he was always going to the Kingdom Hall but was also always refusing to do field service. Witnesses in full standing would visit him, "eat" with him, et cetera, but he never became a "brother".
This case I can understand to be that of someone who is being lured, and therefore his vacillations are tolerated because they don't want to scare him away. But I wondered what could happen to someone who had been born in and refused to baptize. In this sense, they wouldn't want to scare this person away either, because he or she is part of the JW world in a way this other gentleman - for example - just couldn't have been.
From Blondie's post:
Since the Spanish and Portuguese word ministro is usually understood to refer to a Protestant or Evangelical preacher, its use may prejudice Catholic persons against the Kingdom proclaimer who uses it.
This is simply not true.
Many thanks to all who took the time to post, Blondie in particular.