Not being content with the standard three items in “rock, paper, scissors,” or, in the way Doyle was taught at school, “scissors, paper, stone,” which meant that Doyle's favourite choice of paper could always be defeated by his opponent once they caught on, if they kept choosing scissors, Doyle added “rain,” which could defeat everything. Well, Mummy didn't like that idea, and added “roof,” because something needed to be able to defeat rain. Before long, Doyle had also added nail, duct tape, sticky tape, drawing pad and pencil to the mix, for the most confusing edition of “rock, paper scissors,” titled, “scissors, paper, stone, rain, roof, nail, duct tape, sticky tape, drawing pad, pencil.” We're still unsure of a lot of combinations of what beats something else.