In watching shows like "Hell's Kitchen" I've learned there are two kinds of chefs: crazy ones and dumb ones. This guy is somehow both.
The guy in this video is so intent on not crying while cutting onions that he blindfolds himself by wrapping a whole rag around his face (which doesn't make any sense because you'd end up crying anyway once you inevitably chopped off a finger). But if this video is any indication of this guy's intelligence, he'd probably dip his whole arm in the fryer just to cauterize the wound. And it's not like cutting an onion without crying is a big secret passed down from master to apprentice. A quick Google search would show anyone at least two really easy ways to do it, saving you from having to potentially sacrafice a finger for a low paying resturant job.
But maybe that's how chefs are, constantly one upping each other like a bunch of drunken frat boys by doing crazier and crazier stuff. It certainly seems like that in the video, with one guy laughing in the background and another guy telling him how many onions he has left.
One thing is for sure, I for one wouldn't want to eat anything he prepares. Who knows what kind of extra "special" ingredients you'd find in his dishes.