Harry's detention - James saved Snape's life incident

[saraquel_omphale]

No: HPFGUIDX 135726

Did anyone else think that when they read Harry's last set of 
detentions with Snape, when he had to file the punishments, that he 
was going to come across the infamous James-saves-Snape's life 
incident and how DD dealt with it?  Well it didn't happen then, but I 
am wondering if Harry will go back and find out about that.  

Also, isn't it interesting that Snape wanted him to do that particular 
era.  I can't think that Snape wouldn't have realised that Harry might 
come across that incident.  Did he set it up for Harry to find out 
about what happened?  If so, why?

I also think that how DD dealt with that incident is highly 
significant to Snape's subsequent reactions to the Marauder's, towards 
DD and eventually Harry himself.  What did DD explain to Snape about 
life debts?  More significantly, why was Sirius allowed to stay at 
Hogwarts and not expelled, what punishment did he recieve?  If I was 
Snape, knowing that someone had deliberately set out to either kill me 
or at least make me into a werewolf for the rest of my life, I would 
be pretty pissed off if they were only given a detention.  I wouldn't 
be that impressed with DD - I think favouratism is a (possibly mis-
spelt) word that might come to mind. 

How DD dealt with this could set the seal on Snape's subsequent 
actions. Did DD force Sirius and Snape to make some sort of agreement? 
I'm not saying UV here, I don't think DD would have done that with two 
15/16 year old boys.  But I've always thought that this was going to 
be very significant, and I think JKR, in the detention scene, has set 
us up for Harry to be able to find out.  Any thoughts?

Saraquel