Another Formation - Double V from the Nederlands - also stamped their feet at Schiphol Airport in Amsterdam. Believe or not, the two formations performed indepedently from each other - and only a few hours apart. Worlfgang Montag, who sent us the Austrian video, comments on Double-V's clip: "We did the same also at Schiphol just a few hours before you. People must think there is a congress of crazy guys travelling around ..."