Oh, Dudders was just reliving the awful experience of having to give up his second bedroom.
JK has firmly stated that Aunt Petunia is non-magical, or at least not a squib, but what about the other Evans'? Is it established or just assumed that Lily was an aberration in an otherwise totally Muggle family? I am heading off to the Lexicon to see what I can see, but I think that the whole Dudley/dementor thing is a non-issue. They state during the hearing that Muggles can sense dementors, and be affected by them- look at the dementor induced miasma that is afflicting the Muggle world in book six. He was almost lip-locked (or snogged-lol) by the dementor- of course he would be uncomfortable.
(Edit)
Okay- checked the Lexicon, and nowhere does it state that they are one or the other, just that they were "delighted to have a witch in the family".. Could be one is a Muggle, and the other magical- otherwise, why the 'delight'? Remember when Neville was thought to be a squib, and how ecstatic his family was when he started showing magical abilities? I wonder if a mixed parent family can have a non-magical member who is just that- not a squib, like Filch. JK emphatically states that Petunia is not a squib, so ....(sigh) Off to the Lexicon again.......
