Why Did Sirius Play the Joke on Snape?/Marauder's Map

[magpie1112 at yahoo.com]

No: HPFGUIDX 24827

--- In HPforGrownups at y..., Amanda Lewanski <editor at t...> wrote:
> cynthiaanncoe at h... wrote:
> 
> > In PoA, we are told that Sirius plays a "joke" on Snape that could
> > have gotten Snape killed by following Lupin to the Shrieking 
Shack.
<snip>
why in the world would Sirius deliberately set up a situation where
> > Lupin, one of his best friends, kills someone and would thereby be
> > expelled or worse?
> 
> Hmmm. Because Snape did something to *him* in particular, 
sufficient to
> make him focus entirely on revenge and not past that point--spied on
> him, caught him doing something, whatever? Secondarily, because 
Sirius,
> for some nebulous reason, "feels" impulsive to me. I don't believe 
he
> thought it through. Had he, he might not have done it, but I don't 
think
> Sirius is the think-it-through type. He's a mover and shaker. 
<snip/>

I agree!  I've always had a big "Fred & George" vibe when I think 
about Sirius, James and Remus.  I mean, they DID create the 
Marauder's Map.  (Peter feels more like a Colin Creevy 
or some such).  So the idea of Sirius just doing something 
mischevious that "sounded good at the time" fits in.  

Hmmm - speaking of mischief, perhaps the mischief-vibe from MWP&P was 
so strong that Fred & George were destined to find the Map?

Question - in PoA, Fred & George tell Harry that they lifted the 
Marauder's Map from Filch, who had kept it in a file 
marked "Confiscated & Highly Dangerous".  Has anyone come up with an 
idea on how Filch came by the map? I'd hate to think that Filch just 
discovered it on a random search.

Sorry to switch topics in midstream, but I have a sudden need to 
know.... 

Denise (wondering why she never had a Marauder's Map when SHE was in 
school....)