Pro runner and Olympian Nick Symmonds was looking for a new challenge, after setting the World Beer Mile record, and came up with this, The Big Mac Mile. It's pretty simple, eat a Big Mac, run a lap of the track, repeat until you've eaten 4 Big Macs and run 4 laps. Probably not the best idea in the world, but Symmonds and his YouTuber friends seemed to have a good time with it.
I probably don't need to tell you not to try this at home, right?