All joking aside, it seems to be on the brink of becoming very, very serious. The question is, when do you call a halt to any interaction, and batton down the hatches. When you do, who will work to pay the bills? If a huge slice of the population goes down, who will run those nice nuclear power stations you guys have accross the water from us? Answers on a postcard please to Gordon Brown, 10 Downing Street.