I was sitting in a particularly pleasant cafe in Hoxton a couple of weeks ago eating bread and hummus and drinking a glass of white wine. If it helps you picture the scene in your mind's eye, here is said cafe. An altogether convivial spot to while away the time you'll no doubt agree. The only real trouble on my mind was not looking cool enough to blend in with the local East London clientele. But this middle-class idyll was about to be shattered. I bit down on a piece of bre