Mrs. Norris

[Kirstini]

No: HPFGUIDX 78834

Entropy wrote:
> >  I don't recall ever hearing about how
Filch came to be at Hogwarts, or anything about his attachment to 
Mrs. Norris.  Why does she have a human name? Could she be someone 
who had been irreversibly transfigured, or an animagus who 
got "stuck"?  I'm always suspicious when JKR omits background info on 
characters like this.  Any thoughts, guys?> > 

Yes, there are lots of thoughts out there already. Try the FAQ at 
http://www.hpfgu.org.uk/faq/animals.html#R9
and have a look at Hypothetic Alley for a bit more outre speculation:
http://www.hpfgu.org.uk/faq/hypotheticalley.html#norris

I've just marked the sections relating directly to Mrs Norris, but 
the whole of both sites are well worth a look and are always useful 
for consulting the received wisdom of the list.
Kirstini