title: Stop a QTimer.singleShot() timer
body: <ol>
  <li><p>Is it possible to stop a <code>QTimer.singleShot()</code> timer? (Please don't tell 
  me to use the <code>stop()</code> function of a <code>QTimer</code> object - I really want to 
  know if the static function <code>QTimer.singleShot()</code> can be stopped before 
  its time has elapsed)</p></li>
  <li><p>What happens if a second <code>QTimer.singleShot()</code> is launched before the 
  first one has elapsed? Is the first one killed, or is a second one 
  started instead?</p></li>
  </ol>