A classic example of a climber being in WAY TOO MUCH of a hurry when cutting, resulting in a subpar cut, which almost always results in a bad outcome. What I saw was an extremely hurried undercut which resulted in a BADLY missed first attempt with 3-4 inches of bypass. He then followed it up with a feeble attempt at properly cleaning up his undercut, and he left a couple inches of far side bypass. Its clear as day in the vid that the top pulled to the left, and knowing that he chose to leave that far side bypass its not a surprise that the top did so. The fact that he stopped cutting a decided to pound some wedges just compounded the effect of the bypass.... Oops.He is actually a pretty decent climber and does clean work. Luckily this didn't turn out as bad as it could have. Here is a video he made regarding this incident and he is aware of his mistake.
Moral of the story is to slow the fuck down and make sure every cut you make is as close to perfect as you can get it... When limbs, tops and logs are moving is when we are most vulnerable, so we all need to strive for perfection each and every time, regardless of size or situation....The dude in the vid dodged a bullet as he could just as easily have sustained a severe life altering head or neck injury.......Hope he sees the "fuck up" chain of events that led to him getting his bell rung.....