emacsclient and gnus

[Harry Putnam]

I'm new at using emacsclient..  

It hasn't been obvious to me how to gracefully exit emacsclient after
connecting to a remote emacs running gnus, and I've changed buffer
into the gnus session from the remote.

To get into the server I said `emacsclient -c' once the emacs frame
opens I did C-x b *Group* <RET>  and went about my gnus business.
Now how to leave without shutting gnus down on the server too.

After reading and posting or whatever... if I change buffer back out
of gnus and attempt to C-x C-s... it still wants to kill the gnus
session.   Which also kills it on the remote.

C-x # just tells me there are no buffers waiting.

I must have missed it in emacs manual under emacsclient... how to
close emacs without terminating the gnus session on remote.