> If a giant monster tries to eat my house in one bite without asking me for permission, and my house has a closet full of bleach, it's hard to claim that I'm poisoning the monster.

Be fair to what's actually happening:

If I see that a giant monster is going around eating houses and I make some giant monster poison to keep in my closet in case the monster comes for my house, it is actually fairly reasonable to claim I poisoned the monster when it finally does. Even if I agree that the monster should consider the possibility, it can still be true that I poisoned it.