Every year, hundreds of people travel to Cooper's Hill in Gloucester, England, to watch grown men throw themselves down a hill after a giant wheel of cheese.
The idea is to catch the cheese before it reaches the bottom of the hill, but it's nearly impossible since the cheese rolls at up to 70mph.
The hill itself is too steep to run down, so the end result is a few dozen people sliding, rolling, and tumbling all the way to the bottom.
Injuries happen every year, many of them caused by the cheese itself careening off the course into the crowd of spectators, with enough speed to seriously damage anything in its way.
