Sorry dude (NY Bowhunter), but your wrong. You may be a champion marksman, and never missed in your life, and always had your deer fall instantly...but there is NO WAY FOR ANYBODY TO BE 110% SURE OF ANYTHING EXCEPT FOR DEATH AND TAXES!!! Crap happens. You dont know the physiological condition of the deer you shoot. You have no idea how much " fight" can be in a deer. A bad shot can always happen, and there is no way anybody can be sure that a deer is "dead" at the moment you pull your trigger or release your bow. thousands of freak occurances happen man, and if you think you or your gear is "110%" sure, then you my friend have an arrogance problem...no disrespect implied...
My brother in law shot a wounded deer point blank in the head with a Winchester 30-30, and he DID NOT die. Most would think that shot is 110% sure to put a deer out of his misery...but it was'nt. And its not like this deer hade some wacky condition...he was wounded by an inaccurate hunter[&:]