There have obviously been a lot of animals killed with less than ideal shots. One of my buddies put a perfect gut shot on whitetail buck back in November with a Rage two blade. Deer only made it 50 yards before collapsing from loss of blood. If you look at the rear end of a deer, there are areas where a broadhead could pass without hitting any big arteries. There is also some very heavy bone mass back here that can stop a broadhead cold. Not a responsible shot, IMO.