Snape and the Prank...some thoughts

[finwitch]

No: HPFGUIDX 47068

For one thing, we do /not/ know how much Sirius really had to do with 
the trick. It is possible that ALL he did was leak information on how 
to get past the Whomping Willow - by accident, confusion etc.

And I do agree that the event was what made Sirius to at least think 
he was NOT a good Secret-Keeper, having been the very cause of Snape 
learning of Lupin's secret. That event was what he used to convince 
James, I guess. Because he WOULD die rather than betray his friends. 
He'd be so *very* worried about being *tricked* to reveal it so 
important a secret that he just can't take the responsibility. It is 
more responsible to admit right out your disability to keeping 
secrets than to accept the confidence, after all.

Still, what if Sirius wasn't playing a trick, but /Peter/ was? Trick 
Sirius to leak the info to Snape by making him believe Snape knew, 
and then to Snape once that part played off, that Sirius and James 
had *plotted* the whole thing so that Snape gets killed, to Lupin 
that Sirius had wanted to protect his secret by attempting to make 
Snape a werewolf, only that James saved Snape too early... A 
trick /Peter/ played so well that NONE ever thought of HIM being the 
one. Peter wanted Snape dead so that he could be the number one Spy 
at Voldemort's service...

That rat IS a tricky one, managing to fake his own death all too 
often. Sirius figured it all out, only too late to warn James in 
time... To warn him what a nasty rat they all had trusted in...

-- Finwitch