Walker where do you live?
The chances are that they were the British apaches as they are now active and were on exercise near woodbridge a couple of weeks ago. I wouldn't worry about the dogs going mad I would worry more about them falling out of the sky, Given the current problems of the U.K.'s defence. Don't get to used to seeing them though as the Health and Safety man will probably ground them before long for some stupid reason. Why Oh why can't we be the 51st state?