 So it depends how comfortable we are with having knotweed popping in through our basements and things like that. And that's always the problem with how we manage the natural world and our sprawl into it and their sprawl into ours. It's like, where do you hold that boundary? And it is a disconcerting thought to have these soft, squishy creatures poking through the things we made to be complete barriers to them. But they can do that. So I'm not sure...