The Joker grins up at him. "I knew you'd understand. But, ah, I don't mind seeing you. You might not want to BE seen, though...don't really want the cops after you, do you? I don't really care, I enjoy the chase."
He nods. "Well, I've, ah, got that whole abandoned shop under my flat...was thinking I could do something with it..." The look on his face clearly says And it would only LOOK legitimate, but certainly wouldn't be.