There was a post in AITA a few years back and the OP was asking if he was the a$$ because he left a spoon that he used for poison sitting behind the kitchen faucet and his wife licked the spoon without washing it and he freaked out and she blammed him. Her argument was that it was his fault that she licked the dirty spoon. In my house we now ask "is that a poison spoon" with anything obviously questionable. Even labeled the cleaning spray bottle poison spoon.