I know a couple of guys that could probably handle the situation and also know several that bailed on multiple events (Louisiana Hunt, The Cookout, etc.) when things got electric. As a participant, for me it was not melodrama rather, a rush the likes of never before experienced.
I do not personally know Norseman but have stated previously that I feel he is good people, on the wrong path (IMO) but nonetheless a decent person, so your inference is off the mark.
BTW, there's a huge difference with being "hardened" enough to kill one however, the realization, after the fact will totally overwhelm the state of ignorance the shooter was operating within, beforehand.
IMO, BF101 is to actually observe one first before you decide to pull the trigger.