For a short I really loved the humour in this one.
Yes, Angie and her family are right "chavs" and are portrayed really well, just like any sitcom a little OTT maybe. The way it was written I could just hear the whole chav dialect oh so clearly in my head. For anyone who knows them, I immediately had the characters Daisy and Onslow in my head from the sitcom Keeping Up Appearances - lol!
As for Giles, well I don't think he really is that much of a snob on the inside, Hugh was his main problem, but that solved itself in the end with Oz.
If this short had been a teaser for a longer book, I would pick it up immediately. Definitely left me wanting more, which for me is a good sign for a short.