A) If you've ever done any field butchering, such as when you go deer hunting, you would understand what silly bullshit this is. Even a deer that has run for a bit after being shot and has it's little heart pounding doesn't bleed like a hose, spraying everywhere. There is sufficient blood present for the task in question.
B) When you decide who gets the honor, I would be pleased to help. People are a species that I would have far less trouble butchering than say, an innocent goat.
C) When all is said and done, the results have been recorded, and analyzed; barbeque. Long Pig and Cold Beer. Good times all around.