Theory on Petunia

[spookedook]

No: HPFGUIDX 156489

Brothergib says:

>> The following Q&A appears on JKR's site;

'Aunt Petunia will start exhibiting magical tendencies.'
'No, she won't. Aunt Petunia has never performed magic, nor will she
ever be able to do so.'

I have to be honest, I think this rather puts an end to the
possibility that it might be Dudley as well. The obvious candidate
appears to be Filch. We even have evidence that he has taken a
course to help bring out his magical qualities. <snip>

It is also possible that it could be Mrs. Figg. <snip> <<


Tinktonks says:

I recall reading somewhere that JK Rowling has told us that the
Kwikspell course was unsuccessful for Filch.

Is there any point in the books where Madam Pince the librarian uses
magic? I dont recall any? In line with JKR's magnificient ability of
nmentioning people in a way in which makes us think they are
unimportant and overlooking them I'd bet a fake Weasley wand on it
being her.

She is mentioned on several occasion throughout the series but never
with any real consequence. Is this JKR using that fabulous literary
device mentioned in other posts? (Chechov's gun is it?)

Any takers?

Tinktonks