Sudden Death by poisoning.
http://www.youtube.com/watch?v=KwFHBU9ZtzE
It has been long since i came back online. So i would like to show what i had been experimenting with civilians
This videos will show how to override civilian's death time via poisoning. Basically, you just have to poison a person, let him go bonkers, grab him up once he falls to the ground, move around for a while and let him push you away, he is dead.
There is also a special action for Musicians who always run to you and a sing a song. He will not die immediately, instead, he will sing you a song. If you turn your back against him, he will die. Or if you let him finish his song, he will also die. Because he is poisoned and he is supposed to die but you overridden his death time. You can play with him as long as he does not perform any further normal actions (e.g walk, run) which he was not suppose to perform because he is already dead. If he perform any normal actions, he will just die.
There are other glitches with poison. One that I found out is poison someone then attack with your fists. Instead of dying they will get knocked out. The best part of this is guards won't notice so you can take out a whole group of guards. Civilians will notice though.
There was one time where i knockout a person after he got poisoned. He fell on the floor and kept on rolling and moving.