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LONDON - SEPTEMBER 16: Workers prepare balloons for Usman Haque's Golden Spectacle that will launch London Fashion week during the Moet and Chandon 'Mirage' evening in Holland Park on September 16, 2007 in London, England. (Photo by Chris Jackson/Getty Images)

A guy set a Guinness record by popping 200 balloons in 14.77 seconds. 

The balloons were attached to a wall and he ran alongside popping them with a nail.  He beat the previous record by about 19 seconds.

There were two stopwatches.  One time came in at 14.88 and the other at 14.69 . . . so 14.77 was the average.