How did Crabbe & Goyle not notice?

[Milz]

No: HPFGUIDX 25377

--- In HPforGrownups at y..., "Mindy, a.k.a. CLH" <mindyatime at j...> 
wrote:
> I am amazed by another thing in CoS. Once the Polyjuice Potion 
started
> wearing off, and the Terrible Two dashed from the Slytherin Common 
Room
> in a huff, obviously Crabbe & Goyle exited their closet, found their
> shoes, and made their way indignantly back to their Common Room in
> puzzlement. Draco should've then given them a bawling out for how 
weird
> they had acted moments ago... How is it that none of them realized 
they'd
> just been duped? It's so unlike Draco to let an opportunity like 
this
> slip by him... Why didnt he raise a ruckus and try to find out who 
just
> impersonated his friends and why? Not another word is mentioned 
after the
> incident about its aftermath or repercussions. Perhaps Crabbe, Goyle 
and
> Malfoy are so thickheaded that they didnt even notice what went on? 
What
> do you think?
> 

Actually, I think Draco thinks Crabbe and Goyle to be dunderheads and 
probably didn't believe them when they told him they just woke up in a 
closet. Or maybe Crabbe and Goyle were scared to tell Draco. See, the 
monster supposedly only attacks Muggles and Muggle-borns. If Crabbe 
and Goyle suspected the monster had something to do with their attack, 
 then they would have had to thought the monster would only attack 
them if they had Muggle blood. Knowing that Draco is prejudice against 
Muggles and Muggle-borns, I don't think they would have confided in 
him.

> We have also learned from Harry & Ron's perspective, that when under
> polyjuice potion, one only attains the outside characteristics of 
the
> person being impersonated.  Harry and Ron received the voices and 
faces
> of Crabbe & Goyle, but they maintained their own personality and 
their
> own knowledge. They didn't BECOME Crabbe & Goyle. In that short 
hour, it
> was quite some feat to pretend to be C & G. SO can you imagine how
> difficult it must be for someone to impersonate somoene else, long 
term?
> It is still beyond me how Barty Jr. managed to pull of his Moody
> impersonation for a full year; a young boy who spent 10+ years under 
an
> invisibility cloak hidden in a house, without schooling, mastering 
such a
> difficult feat. Did he never stumble and act un-Moody-like? No one 
EVER
> got suspicious? How can it be that he never acted Barty-like by 
accident?
> Look how Harry almost apologized to Percy. IMO, acting under 
Polyjuice
> Potion is an extremely difficult feat and perhaps that is why we see 
it
> used so little in the four books.
> 

IIRC, Crouch Jr. kept Moody under the imperious curse rather than kill 
him so that he could use Moody's knowledge. So maybe, Crouch Jr. would 
ask Moody how he did certain things. 

I do think he slipped the one time during with Malfoy the Ferret. I 
think the only reason why it was viewed as typical Moody behavior is 
because of Moody's reputation as an Auror and as a paranoid who "sees 
Dark Wizards everywhere". I don't think the real Moody would have 
treated a student that way.