I’m not sure if this was an actual story idea or a rambling exploration into the rules of monster. But to be truthful, this one has weighed heavily on me over the years...
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Our story starts when a character lets a traveler in for the night. The traveler comes inside and reveals he's a vampire and is going to attack the main character.
Main just replies, "You're going to attack me for being nice?"
The vampire is confused and explains that Main foolishly let the vampire in so, yes, now the vampire can attack him in his own home.
Main says yes, but that's what being a decent person is about. You let people in if they need help and take care of people.
The Vampire is one part annoyed with these critiques and confused why Main isn't scared or fighting back.
Main points out the ways that he can't fight back, the vampire is stronger and faster and has powers. Main's best defense is to not be worth attacking.
Frustrated, the vampire stops the attack and the two settle down and discuss the rules for monster attacks.
Vampires punish you for letting them inside.
Witches punish you for not giving aid to a traveler.
Fairies punish you for giving them things or talking to them or tasting their food or just standing in particular spots.
Gods are a toss-up. You can be punished for turning down somebody in need, or they come in and sex up your wife and daughter.
No matter what you do, it's a toss-up for if you're going to be punished or not. There are no rules and there’s no way for a normal person to know how to react to a person in need unless they already know the person’s secrets. It’s like the whole monster/Divine system is made to punish you no matter what you do.
Even once you’ve succumbed to your fate, you’re just in another lose-lose situation.
If you get bitten by a vampire and give in, that's considered turning away from God and you go to Hell. If you don't give in, you'll weaken and starve to death because you're not feeding, but that's suicide and also a grievous sin. You can also ask a warrior to kill you, but that still seems like a different form of suicide.
Once you get bitten, you're just screwed and damned no matter what you do. It really encourages people to give in and at least enjoy the power. If you’re doomed either way, selfishness at least gives you a short-term gain.
Both upset by this discussion, the human and vampire part ways. Coming to no grand conclusion on how to act in the future or what rules govern the Universe, the vampire heads out into the night and watches the stars for a while. He’ll eat somebody less philosophical next time.