How does this happen? Who out there is so culturally illiterate that they couldn't spot a Stormtrooper costume on sight – at a Star Wars convention? Okay, let me backtrack: a vendor at a convention in Wisconsin was stormed by cops after someone called 911 to report "an 'armed robber' in fancy white armor at the local Ramada." "Apparently some people who saw him felt there was a threat," said Sgt. Kay Nikolaus of the Janesville Police Department. The concerned citizen was apparently riled up by the vendor's plastic laser gun, which police warned him to leave inside next time.