I love to set my sims on fire. Watching the torturous death is so much fun. I vote that they add an option in future expansions so you can make the sim bleed to death. It would be so fun to watch as all the blood slowly drips out of their bodies.
P.S. yes I realize I'm sadistic which is why I play the game in the first place. I have never killed anyone in real life though. The sims is a nice outlet for my anger.