We never take prisoners; basically, any of our opponents have to die or run away before we kill them, because they have no other choice.
Like with jmucchiello's group and horses, it's just something we were trained to do by prior GMs. It was very effective aversion therapy: any time we tried to keep an enemy captive, we got screwed over thoroughly.
It was even worse if we tried to interrogate them. Immediately upon being captured, all enemies would turn into smug little bastards who knew the answer to every question we asked but could never under any circumstances be compelled to reveal anything. It didn't matter if he was the most weasely, cowardly little dope to ever face us, as soon as he was stripped of his weapons, tied up securely, and was totally defenseless, suddenly he was an iron-willed tower of strength. Silent and resolute, he could withstand anything, until such time as he could make an amazing and completely unpreventable escape or until someone in the party just killed him. Hours of game time could be devoured by that crap, and nothing would ever come of any of it.
The same GM used to run cop games, and we'd get the same effect with punks we arrested. On the streets, they'd shake and beg and plead and respect our authoritay, but if you actually arrested any of them and took them back to the station they would suddenly be completely calm and have an unshakeable defense strategy at the ready. Eventually we started taunting criminals into violence just so we'd have an excuse to shoot to kill.
And the sad thing is, I think that GM has improved since then. He's no longer so fixated on having all his NPCs be in complete command of every situation. He's willing to have some of them be weak-willed losers who are capable of failure. But it's too late for us, because he did such an excellent job of training us to expect the opposite. So now we will never take prisoners, and will never expect interrogation to provide us with even marginally useful information.
We weren't born ruthless, vicious killers. We were made that way.
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i blame society
ryan