Questionnaire for Invaders:
#1) Why are you invading?
-a) for souls and humanity
-b) because it is fun
If you answered a): Obviously, you have never googled "How to farm souls and humanity in Dark Souls". Do that now!
If you answered b): Great, you don't live under the rock that we call North Korea. Continue to question #2).
#2) Why is it fun for you?
-a) I get to see other players writhe and squirm as they face their inevitable death at my hands
-b) it is an enjoyable test of skill among equals (perhaps not equal in skill, but equal in right to have fun with Dark Souls)
If you answered a): You shouldn't be spending time with Dark Souls. If your therapist won't admit it, I will: you are an insufferable sadist! Seek professional help.
If you answered b): Great, you don't have to be institutionalized. Now, if you aren't honorable, I hope you have realized that you should be.
Questionnaire for the Invaded (hosts):
#1) Why are you in human form?
-a) I'm trying to fight a boss and have some summons with me
-b) I am just doing some random stuff (ex. farming, walking around looking for items you missed)
-c) I am looking for some PvP action!
If you answered a): I would agree that you probably have every right to use any tactic, weapon, spell, etc. that you have in your arsenal to protect yourself, your summons, your humanity, and your souls.
If you answered b): Have you ever heard of offline mode?
If you answered c): Awesome, on to question #2)!
#2) Why do you want to PvP?
-a) for souls and humanity
-b) because it is fun
If you answered a): I'm not even going to dignify that with a response.
If you answered b): Great, now onto Final Jeopardy: #3)!
#3) Why is it fun for you?
-a) I like screwing with invaders. They invaded so they are wrong, and I should be able to kill them any way I please.
-b) I think that it's a great test of my skill and my invader's.
If you answered a): That is ridiculous! You just answered that you were standing around waiting to be invaded. You asked for it, so now you will get "penetrated from the rear".
If you answered b): That's wonderful. Now be honorable!