# File lib/rbot/botuser.rb, line 741
      def create_botuser(name, password=nil)
        n = BotUser.sanitize_username(name)
        k = n.to_sym
        raise "botuser #{n} exists" if include?(k)
        bu = BotUser.new(n)
        bu.password = password
        @allbotusers[k] = bu
        return bu
      end