Meta-conditionsIf verbal communication counts as an action, then disregard all verbal communication
dictated below unless I explicitly state that it should occur even if it is an action.
ActionsLoudly and angrily indicate my intent to brutally murder payne, using verbal communication. Loudly and angrily indicate that any others nearby should cooperate with me, using verbal communication.
Observe my immediate surroundings if I can. If the room remains dark and if feeling around with my hands would not cost me an action, then observe my surroundings through touch. If I felt around with my hands earlier and touched someone that I can clearly identify as payne, then remember his location in preparation for the killing action below; else if I touched someone and can not conclusively identify as payne, then carefully move away from them. If I didn't touch someone and if I found any potential weapons that I can safely obtain, then take the most lethal one I can get.
If the room does not remain dark, then use my sense of sight to quickly locate potential weapons in the room, and take the most lethal one I can safely obtain.
If I am put in danger, then respond in the most sensible situation in order to keep myself alive. If the danger is not payne or something that payne has caused, then prefer non-lethal actions should I resort to violence. If the danger is payne, then perform the kill sequence described below as a response action.
If payne leaves the room and if I would have sufficient actions left to perform the kill sequence described below after following him, then follow him.
If payne is in the same room as me (whether I have followed him or not), then kill him in the manner described below. The basic gist of it is
locate payne, attack him if I can find him, and use different methods depending on my weapon.
Find payne.If the lights are off, then use either superior hearing or superior night-time vision to detect payne's location. In particular, listen for the sounds of his movements, voice, or breath, while noting that movement and breath sounds are not necessarily reliable. If the lights are on or I am able to clearly locate payne, then take note of his location. Either way, I should know where he is.
If I do not have a reliable indicator of payne's location, then skip all of the following actions, but remain very strongly on guard and ready to kill payne should I get the chance, else if I am in danger from payne, then avert the danger any way I can, especially if that way involves killing payne without being harmed.
I can slice with my weapon.If my weapon is a decently-sharp object that could be used to slice but not stab, then use it to slice payne's neck or wrists. If I go for his wrists, then I should, if I can, slice "down the highway" as illustrated in this image:

If I do slice "down the highway", I should verbally state, loudly, "Down the highway!"
If my weapon is an extremely-sharp object that could be used to slice but not stab, and is capable of removing limbs, then I should either attempt to decapitate payne with it or perform one of the actions in the "decently-sharp slice-but-not-stab" case above. If I successfully decapitate payne, I should verbally state, "Shouldn'ta lost your head, nutjob!"
If my weapon is a sharp-slice-only object, and if none of the actions in the sharp-slice-only cases above can be performed, then I should kick and, if possible, use my weapon against, payne's groin. If I can only do one of those, then use whichever would be more convenient: a kick or my weapon. If sucessful, I should verbally state, "And the nutcase is destroyed!", emphasizing the word "nutcase" to highlight my pun between "nutcase" as in "insane person" and "nutcase" as in "container for a man's testes, colloquially called 'nuts'".
I can stab with my weapon.If my weapon is an object that can be used to stab but not slice, and if it cannot cannot easily penetrate bone, then I should attempt to stab payne in the neck or heart. If I cannot stab him in those areas, I should instead attempt to stab him in an area where an injury would be painful and disabling, such as a lung or his groin.
As I stab him, I should, if I can, verbally communicate, with loudness and depraved satisfaction in my voice, "STAB STAB STAB STAB STAB STAB STAB!!"
If I stab him through the back of the neck, I should aggressively and proudly comment on how I killed him "
Jack Bauer style".
I can smash with my weapon.If my weapon is an object that can inflict blunt-force trauma, then I should attack payne with it. If he has a projectile weapon and I am not close enough to strike him with my blunt-force weapon, I should throw it at him in an attempt to wound and disarm him. If he does not have a projectile weapon but does have a melee weapon that can inflict sharp-force trauma, I should try to smash it out of his hands. If he has a blunt-force melee weapon, I should block any strikes he makes with it. Either way, I should attempt to smash him with my blunt-force weapon; prioritized list of targets on his person for such an attempt are: head, neck, groin, chest near the heart, gut, anything I can hit.
If I am able to disable but not kill payne, I should verbally announce "Finish Him!", and then use the blunt-force weapon I found to smash his head repeatedly until I hear the sounds of bone breaking and/or see copious amounts of blood. I should then announce, "Fatality!"
I am unarmed.If I have no weapon, payne has a dangerous weapon capable of inflicting lethal or severe injury, and others are showing a willingness to help me, then I should attempt to sneak up on payne (if possible) or otherwise approach him, and try to disarm him. I should attempt to kill payne using the most reliable method from the following: snap his neck; strangle him; pound my fists or feet into his head until he seems dead; stomp on his groin repeatedly.
If I have no weapon, payne has a dangerous weapon capable of inflicting lethal or severe injury, and no one appears to be willing to help me, then I should remain defensive and not attack. I should also verbally deride the others in the room, calling them "cowards" and mocking them: "You don't even have the balls to avenge Nasus. This nutjob's been attacking and killing people for no reason, and you don't have the guts to put him down!"
If I have no weapon and payne has a non-lethal non-severely-injuring weapon, then I should attempt to kill payne using the most reliable method from the following: snap his neck; strangle him; pound my fists or feet into his head until he seems dead; stomp on his groin repeatedly.
If I have no weapon and payne is unarmed as well, then I should attempt to kill payne using the most reliable method from the following: snap his neck; strangle him; pound my fists or feet into his head until he seems dead; stomp on his groin repeatedly.
Either way, I should, if I attack, verbally communicate to payne, "YOU DUN GOOFED! WRONG TIME, WRONG PLACE, WRONG TARGET!"
If I successfully kill payne, then I should, with as much disgust and scorn in my voice as I can summon forth, say, "That's what you get for killing Nasus. Consequences will never be the same!"