Plenty of people have never felt the need to have their teeth whitened even once, let alone repeatedly. I wonder how often Russ usually gets his teeth whitened, and how much he spends on this. Perhaps he covers his mouth in photos more when he hasn't been whitened recently. To a point, I can understand, given that his condition probably causes various dental problems, and they're more visible because of it too. But a lot of it is probably also vanity, or even a manifestation of his tooth fetish. I wish we had some of his former real-life acquaintences still around to ask about this.