It makes a hell of a lot of sense to use these things in a credible, short-term 100% extermination drive, supplemented by other methods including hunting. We've extirpated animals like this before, like the wolves of North America.
But... it's a mammalian toxin. Humans are mammals. I don't understand why you would want to reintroduce it into your home every year as some kind of maintenance activity.
But... it's a mammalian toxin. Humans are mammals. I don't understand why you would want to reintroduce it into your home every year as some kind of maintenance activity.