SPOILERS: School Books

[dumbledore11214]

No: HPFGUIDX 184232

> Potioncat:
<SNIP>
 It's one of 
> those moments we can all identify with---the teacher who does know it 
> all, and who is mean, making a mistake.
> 
> I don't mind his making the error, I doubt that Snape would concern 
> himself with wee dark beasties.
> 

Alla:

Thank you dear!

I thought it was a brilliant characterisation not only because as you 
said it is a mean teacher, who is making a mistake, but also because I 
always like when Snape's arrogance gets a strong kick.

Snape, who is oh so very quick to punish kids for smallest mistakes 
turns out to make them himself.

And I also think that it is also a hint that Snape really cannot teach 
DADA in the peaceful times, if that makes sense. Oh he knows his curses 
and countercurses. But beasts, something that kids may have to know 
when Voldemort is not around? Not so much.

He is OMG not a perfect teacher.

JMO,

Alla