Snape tipping off the wrong side (was: Snape outing Harry as Parselmouth)

[steffy07]

No: HPFGUIDX 94365

Susan:
> Ah, but consider this.  If most of the teaching staff at Hogwarts 
> *knows*:  a) that DD trusts Snape implicitly; and b) that Snape is 
> POSING as a Voldy Spy while actually being a DD Spy; then they'd 
> *know* not to worry too much about Snape's behavior toward the 
Draco 
> gang, right?  They'd know it's part of his cover w/ Draco, Lucius, 
> etc.  
> 
> Siriusly Snapey Susan


Do you think that the majority of the staff has always known how 
deep Snape's relationship with LV goes?  Granted, we don't know how 
deep it goes...yet.  But I was always under the impression that some 
of them knew a little (MG maybe) but not everybody knowing 
everything.  Why would Flitwick or Madam Hooch need to know ANYTHING 
about it?