This coming from the "Square root of all evil!"? "
Generally I find myself in the same situations that Reveilled mentioned. It's no problem to slaughter millions of people from and orbiting Star Destroyer, or just hacking through anything that moves, but generally if there is some dialogue with a character, then I feel awkward about killing them. It's not so much that I feel bad about actually killing them, it's just that I don't really know how my party will react to my murderous ways and I hate upsetting them, because I have to continue to travel with them.
It's kind of like the internet really. Because it's anonymous you tend to do things online that you would never do around the people you hang around with everyday in real life. It's the same with video games for me. If there are party members watching then I have a hard time doing anything really evil, because I know they are watching and will generally say something about it.
If I'm all alone though then all bets are off and I don't feel bad about anything. "
And about those death animations in Fallout. The first time I saw them, I laughed and said "COOL!" I used a sniper rifle to blow a gaping hole in someone's right side. :">