[QUOTE=All_about_HP]
Quote:
Originally Posted by muggles_are_underrated
I think whatever is "funny" about her is why she took in Harry. /QUOTE]
Yup. I think she may develop magical poers or have magical powers that she has been hiding these past few years. She may have realized late in life that she could do magic and has been hiding it.
That's my thought too - I think she keeps her house so clean with some form of magic (possibly she doesn't even know she's doing it).
Anyways, JKR when interviewed at the Edinburg Book Festival was asked whether Petunia was a Squib and her answer was "no, she's a muggle, but - "
I think she has some magical powers but chooses to live as a muggle.
Still though, I don't know if that would be a reason in itself to take Harry in.