A lot of Dutch people emigrate to Australia. One such dutchman missed his curry flavoured ketchup so much, he asked a friend to send a few of the hexagonal bright red plastic ketchup bottles over. Friend agrees.
Some time later, the emigrant hears the doorbell. He opens the door to find customs, airport security, local police, state police and an arrest squad waiting for him. He is rushed to the airport in a veritable convoy of law enforcement agents. He is taken to a bomb-proof chamber, where he is asked to identify the contents of a box shown on multiple closed circuit tv's.

What happened?
The friend found that he could neatly wrap six of the coveted ketchup bottles in a cardboard box that used to contain gunpowder; it was exactly the right size. Unfortunately, in Australia, a corner of the paper around the box got torn to show the elaborate explosives warnings on this cardboard box. That obviously raised suspicion, so the box got placed in a bomb proof room where it was further opened by remote controlled robot arms. Now, the six strange plastic bottles showed up.

Upon seeing the telltale shaped bottles, the former dutchman exclaimed before the law enforcement audience "Man, that's ketchup!". The story made the newspapers...