Each summer, airports become mirrors of a quiet but persistent gap between intention and knowledge — the space between what travellers believe they may carry and what the law actually permits. At Manchester Airport's Terminal 2, that gap produced nearly a hundred confiscated items in a single morning, from yoghurt multipacks to whiskey decanters shaped like handguns. Security officials are not sounding an alarm so much as extending an invitation: the rules are knowable, the preparation is brief, and the cost of ignorance falls not only on the individual but on every person standing in the queu