This man either has a complete death wish, or he's secretly the only man that can directly defy gravity. Either way watching this video is going to leave you feeling uncomfortable and probably a little annoyed that he's done it and you haven't.
Mark Laurence is the man in question and the plank he seems to be so joyfully skipping along is attached to the side of Mount Hua Shan in China.
With nothing but a single wire keeping him from falling straight off the edge this is not a video for the faint hearted, nor a task that we'd recommend on you Sundays off.
Looking at the rest of Laurence's videos it seems clear that he's on a bit of a mission to do as many ridiculous things around the world as he possibly can.
In truth though he'll be hard-pressed to top this.