"The Animagus Black!"

[trishel2003]

No: HPFGUIDX 79887

"Master, I am sorry, I knew not, I was fighting the Animagus Black!" 
sobbed Bellatrix.--P. 812

What a weird thing to call Sirius. When Bella could have called him 
Sirius, or Sirius Black, or Black, or Mr. Black, or her cousin, or 
her cousin Sirius, or her cousin Black, or basically anything, she 
brings up the fact that he is an Animagus.

So, what's the deal? My personal theory is that the pureblood 
fanatics think of Animagi as half-breeds, and therefore lesser 
beings. That would also explain why Voldemort continually harps on 
poor Peter, calling him "Wormtail." He, Voldemort, is angry because 
his life depends on a lesser being.--RTJ