Enlightened, but not convinced, Bobby's nose wrinkled. "Shouldn't you be pushing for a, what is it, biosomethingable filter thing then? I mean, I get cars being a big problem and stuff, but I'm not really into telling people what they can and can't do, you know?" he tried to explain, scratching his head before balling his fist in his hair and grinning apologetically. It wasn't that he didn't see her point, at least he thought he did, as much as he was sure he didn't understand how cigarettes could be as bad as car exhaust, so he didn't want to hurt her feelings. "Do you really think it would help that much? Actually banning it?" he pressed, hoping she didn't think he had dismissed her outright. That would be a hard thing to do, with a head that bright.