Easy random numbers (or letters) from a range

range.random.rb

class Range 
  def pick
    if min.is_a? Fixnum
      rand(count) + min
    else
      self.to_a[rand(count)]
    end
  end
  alias :random :pick
end

random_number = (1..500).pick

# or

random_character = ('a'..'z').pick