title: How to detach only the last record in the pivot table using detach() in Laravel 4?
body: <p>If I do this:</p>
  
  <p><code>return $this-&gt;roles()-&gt;detach($role);</code></p>
  
  <p>all roles are removed.</p>
  
  <p>How to limit that to only the last one?</p>