What do you do when a homeless man knows your name?How about when he turns out to be a friend you haven’t seen in twenty years?Do you treat him to a hot meal and see him on his way?Give him a wad of middle-class guilt money?Or take him in and get him back on his feet?For Alan, there’s no question – only natural that he’d want to see his old mate Craig off the streets, even if only for a few nights, and into some clean clothes.But what if the successful life you’ve made for yourself – good job, happy marriage, lovely kids, grand Victorian house (you did well out of the property boom, thank you very much) – is one that that your old pal would quite like to have too?Even if it means taking it f