def max_id_from(s)
      if ! s.respond_to?(:max)
        if s.respond_to?(:id)
          return s.id
        else
          return s
        end       
      end
     
      
      sorted = s.max { |a, b| a.id.to_i <=> b.id.to_i }
      sorted && sorted.id
    end
def max_id_from(s)
      if ! s.respond_to?(:max)
        if s.respond_to?(:id)
          return s.id
        else
          return s
        end       
      end
     
      
      sorted = s.max { |a, b| a.id.to_i <=> b.id.to_i }
      sorted && sorted.id
    end
given an array or object, return the highest id we can find
 @param [Enumerable] s the array to check