A man in Manchester was denied a refund by a T-Mobile store, so he destroyed it, smashing fixtures and spraying around with a fire extinguisher. He's apparently up on criminal damages charges. There's not really any excuse for this kind of thing, but mobile phone operators... Well, I suspect that many people have fantasized about doing exactly this.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.