I'm looking for general opinions regarding a situation that recently arose in my campaign.
Big fight...a Big Bad Evil Guy, his almost-as big and bad henchman, and a large number of lower level cronies. Eventually the BBEG and his henchman go down. The cronies left alive throw down their weapons and fall to their knees in surrender.
The two melee characters in the party - 1 Neutral Good and 1 Chaotic Good - indicate they will keep swinging at their surrendered foes. I tell them this is inherently NOT a "Good" act and they could suffer alignment consequences if they proceed.
They have 2 counter arguments - 1) they're in the heat of the battle and can't just turn off the combat "juices" like a light switch, and 2) the fact that these bad guys were just trying to kill them justifies continued hacking, even after they've surrendered.
I say neither of these arguments holds water. But my players continue to disagree. Since we're mostly relatively inexperienced, I thought I'd throw it out to the PF community to get some feedback. I've read through some alignment threads that get down some big time rat holes in terms of interpreting the Alignment system in general, and I'm not looking to do that here. Just within the narrow confines of this scenario, is an alignment shift from Good towards Neutral warranted?