title: Shortest way of determining a name ends with an `s`, `x` or `z`, and then use the `I18n.t` method with it
body: <p>I'm creating a Rails application where users can have a first and last name. Since I'm a perfectionist, the application may not show something like <code>Dennis's profile</code> or <code>Xianx's profile</code>, but rather <code>Dennis' profile</code> and <code>Xianx' profile</code>. I use I18n, so I wanted to ask what is the <strong>shortest</strong> way of implementing this? This grammar is the same for both English and Dutch, where the application will be translated to.</p>
  
  <p>Oh, some important things:</p>
  
  <ul>
  <li>I am not afraid of using helpers and the application controller</li>
  <li>My language files are in Ruby, not YAML</li>
  </ul>
  
  <p>Thanks!</p>