Patronus

[pippin_999]

No: HPFGUIDX 190487


> 
> 
> June:
> Let's not forget that in POA they were supposed to be working with
> Dumbledore yet they still showed up at the Quidditch match because
> they could not resist the life that was there.

Pippin:
That was Lupin's explanation, but he was wrong, IMO. They showed up because Sirius Black was there. Harry saw  him, in dog form, just before they arrived. Harry,   who is super-sensitive, passed out, but no one else was so drastically affected. Cedric not only didn't fall off his broom, he was able to catch  the Snitch. 

It isn't easy for Dementors to distinguish one human from another, but they do seem to get the concept that if they refrain from attacking their allies, they will get a steady supply of food. They have no faithfulness and will desert one ally for another, but they do ally themselves. As you say, they didn't mean to attack Harry.  If they had succeeded in catching Black I am sure Fudge would have overlooked their incursion into the grounds.

Pippin

Pippin
 I do not think that
> they really think in terms of being someone's ally. If Dumbledore
> wasn't there to stop it they would have killed Harry (although that
> was not their intention) and probably sucked the soul out of everyone
> there. I think they are allies to the death eaters because they are
> promised "work with us and you will have unlimited people to kiss."
>