[HPforGrownups] Keeping the wolf from the door

[bufo_viridis at interia.pl]

No: HPFGUIDX 93113

Kneasy
> 3. Why don't  Dementors affect him?
> This is the  most intriguing aspect of the Hogwarts Express episode in 
> PoA. He doesn't  produce a Patronus to drive them off immediately - he 
> *talks* to the damn thing, quite calmly! What makes him think Dementors 
> listen to  instructions from anyone they meet? Has he had dealings with 
> them before?

This is an intriguing scene, but it doesn't show Dementor doesn't affect him. For fighting an for talking one doesn't need happiness. The scene may just show that yes, he dealt with Dementors before; and also that he has the will and spine of steel under his soft demeanor. He can talk calmly *despite* being affected, but because he is not affected.
The shapelesness of his patronus is not an issue here, IMHO. First, it was described from kids' POV - and they were was not in shape to clearly describe anything. Second he muttered the spell, not putting maximum effort in it My theory is, weak patronus drives Dementors away, strong one destroys them. He didn't want to destroy Hogwarts' guardian. 

Cheers, Viridis
________________________
Curiouser and curiouser!