Fred, I know this is an old thread but I hadn't spotted your reply before now. I'm afraid this attitude, complete with finger-wagging emoticon, typifies everything that is wrong with GA in the UK, and which would never be tolerated in the States where ATC and the aviation infrastructure in general exists to serve pilots, not the other way around. Why exactly are you so pleased about having delayed someone's landing?
US airfields cope perfectly well with unannounced arrivals, from all directions, whether they want fuel or not (their look out). Why can't it work here?