Re: A DISTURBING proposal! (was Re: Personal langs and converse of aux)

E-Ching Ng wrote:
>There's an American non-immigrant living downstairs from me who speaks only
>conlang to her elder sister; they invented it as children and its lexicon
>is fiercely guarded from everyone else, including their parents.  Her
>English certainly hasn't suffered - and they wouldn't give it up for
>anything.  Last I heard they were going to institute SOV word order, now
>that they've both learnt Latin.>
Uh-oh, isn't there some way you could get them to reveal it to you, before
they muck it up with Latin? ;-)  Seriously, it sounds very interesting.  I
suppose there are similar cases that have been been reported, but probably
mostly from quite young children--and often twins.  This one sounds like
it's been going on for a while (if they''re learning Latin, they would be
teenagers at least?)