Henry J. Cobb wrote:
> 
> >From: hikari <hikari@ricochet.net>
> >Actually, it would be "Keiichi-san"...
> 
> When she's being emotional, it isn't.
> 
> If she's relaxed, then the -san comes out.
> 
> At least that's what I hear from the tapes.
> 
>         Henry J. Cobb   hcobb@slip.net          http://www.io.com/~hcobb

Hmm, not necessarily.  I took my observation mostly from the manga (even 
though I do watch the OVA on a more-than-constant basis).  I think it 
has more to do with Belldandy's normal speaking pattern (for the sake of 
Goddess' modesty, she always speaks in an "appropriate" manner, and the 
speaking manner thing is pretty significant in Japanese, for some 
reasons).