At the risk of total thread creep, penguins might be terrifying, but they're bloody gullible. An RAF tale (perhaps apocryphal, but maybe not) from the godforsaken base on the Falkland Islands conjures up a wonderful vision of how tractable yer south Atlantic penguin can be... Bored flyers were issued with an order from their CO to stop being cruel to the penguins after complaints from various kelpies. It transpires that the Harrier pilots, practising low-level flying, had taken to beating in at under 100ft from left to right along the beaches on some of the outlying islands. Sure enough, 10,000 penguins would all swivel their heads and follow the plane along the beach. Then the Harrier guys would fly from right to left and - just like Wimbledon - the same 10,000 birds would turn and follow the plane the other way. And then they'd fly in from the sea towards the beach and over the birds' heads inland. Imagine 10,000 bemused and rather pissed off penguins lying flat on their backs...