Question about Lupin

[Christy]

No: HPFGUIDX 88860

In flipping through the reecent posts about the Marauders, I've been
struck by the number of people who are working on theories that one or
all of the Marauders were in Slytherin.

Now, I could see where Sirius could have been sorted into Slytherin. I
could also just as easily see him in Gryffindor. James could also go
either way (just as Harry could have, or several other students that
I'm entirely sure the Sorting Hat took some time thinking over).

My question however is, what makes somebody think that Remus Lupin
could have been in Slytherin? The only way this theory makes sense is
if you say the Hat simply put him there cause it needed to fill a
space (A theory I don't buy, or else why bother putting any
personalities to the houses at all. I doubt JKR just put it there
cause it sounded cute).

IMHO, Remus almost had to be a Gryffindor. And if I was forced to pick
another house, it'd be Ravenclaw. Remus is talented and smart but
clearly was a foolish child (as most children tend to be) who got into
trouble. But instead of curling into a ball and hiding, he tried to go
to school and in fact risked the danger of other people finding out.
He lives his life, essentially, as a poor scholar because he can't
find a job, but he keeps going.

One of his friends was a traitor and the other two were killed but
Remus manages to go on (and yes, I know all about the theories that
Remus killed Sirius. I don't buy that).

All of that takes a degree of courage, strength of heart so to speak.
That's what Gryffindor house is all about. (I'm sure it's also obvious
that I'm quite fond of Lupin).

Could somebody explain to me what evidence would lead to Lupin being a
Slytherin?

Cheers,
Christy