Master of This School

[zendemort]

No: HPFGUIDX 111830

Ginger:
> My little theory is that at some time in the past, Masters and 
> Mistresses of the school (as they would have been known then) were 
> given a spell to force magical things found in the possession of 
> students to reveal themselves.  
> <snip>
> We have seen that the map is semi-sentient, so it would have known 
> that this would be a really good time to stay incognito as a scrap 
> of 
> paper, and it tries to do so.  But under that command (or spell?) 
it 
> is forced to say something, so it does so in its own charming way.  
> It insults Snape.
> 

Zendemort again:

Well, I do like your theories. 
However, the incident with the map is not the only place where he 
refers to himself as "master." He also refers to himself as "Potions 
Master," when no other teacher refers to themselves as 
Transfigurations Master or Herbology Master. This leads me to believe 
that there is something more to Snape's personality. He wishes to be 
called "master," Regardless of whether this is a proper term for 
teacher, it STILL shows dominance and power.