PRAGUE, CZECH REPUBLIC. Stag night tourists from Rotterdam, the Netherlands (clockwise from top left, standing) Sietse Dehaam, 23, Angelo Eleveld, 22, Michael Klos, 23, and Jeffrey Snyder, 23, collapse on the sidewalk outside a department store on Weneslaus Square after doing an impromptu head count to make sure everyone in the group is accounted for after exiting the Hot Peppers strip club on Weneslaus Square on August 12, 2011.