CHAPTER DISCUSSION: Prisoner of Azkaban Chapter 10: The Marauder's Map

[willsonteam]

No: HPFGUIDX 189749

 
> June (doctorwhofan02):
> If you read the book, Sirius explains that he did not know how
> he did it but that he thought the only reason he did not lose
> his mind was that he knew he was "innocent" and that isn't a
> happy thought so the Dementors couldn't suck it out of him.

Potioncat:
I think Sirius should have spent more time preparing for his DADA exam.
But at any rate, Snape may very well use the same technique--with intention rather than dumb luck. That is, to arm himself with a true, stong thought "I'm protecting Harry for Lily" for example. Then whatever spell to go along with it.