title: Whats the best way to get the nth to last record?
body: <p>I saw here: <a href="https://stackoverflow.com/questions/420352/how-to-get-last-n-records-with-activerecord">How to get last N records with activerecord?</a> that the best way to get the last 5 records is SomeModel.last(5).
  Is the best way to get the 5th last record only SomeModel.last(5).first or is it something else?</p>
  
  <p>Thanks in advance!</p>