Whoops! Forgot you need line breaks in a pre block:

    When a man grows old and his balls grow cold
    And the tip of his tool turns blue
    And it bends in the middle like a one-stringed fiddle,
    He can tell you a tale or two.
  
    So pull up a chair and stand me a drink
    And a tale to you I'll tell ...
    Of Mexican Pete and Dead-Eye Dick
    And a harlot called Eskimo Nell.
  
        .
        .
        .
      [100 verses or so later]
  
    When a man grows old and his balls grow cold
    And the tip of his tool turns blue
    And the hole in the middle refuses to piddle,
    Well, I'd say he was f***ed, wouldn't you?