Awwww...Mrs. O - nickname her "Rainbow" - she sounds like a pretty colourful character!
I know just what you mean about the "pushy" type of parents though, but at the end of the day, she just wants her child to do well, or to make her mark.
I also follow my gut instincts, but I never judge a book by its cover. Perhaps the woman can't afford to turn out in matching clothes - or maybe she's just colour blind, or has no fashion sense!! Still, a school's a school, not for women to parade as clothes horses., but it's true - sometimes there's no explanation for taking an instant dislike to someone.