Porn Trading Cards!
As I understand it, they have these in Las Vegas as well, but over in the UK they're called "Tart Cards", and nobody frowns if they're left unattended in phone booths or other public places. The outrage: young children are collecting them and trading them like Pokemon cards! Won't somebody please think of the children! The suggestive, rarely-nude cards are bound to cause horrible, horrible things to happen to these children. Well, and any guys who actually call these escorts, but nobody's too worried about that.