Scabber's Attack on Goyle

[gelite67]

No: HPFGUIDX 113197

I never understood why Scabbers/Wormtail attacked Goyle on the 
Hogwarts Express the first year.  After all it happened, just after 
Draco introduced himself and Crabbe and Goyle to Harry.  I'm assuming 
that Wormtail knew the surnames of the Death Eaters, but that may not 
be right.  But, based on that assumption, I couldn't figure out why 
Wormtail would bite Goyle.

However, after rereading that passage, I think that Wormtail was 
trying to save his own neck.  Ron had been grousing about how 
worthless Scabbers was.  Maybe Wormtail was worried Ron would find a 
new pet and he would be put out to pasture?  Which would mean he 
would lose his precious information base.  

Angie