title: What is the best way to log out another user from their session on macOS?
body: <p>In other words:</p>
  
  <ol>
  <li>Log on as Bert (who is an administrator)</li>
  <li>Using fast user switching, log on as Ernie (Bert remains logged on)</li>
  <li>Switch back to Bert</li>
  <li>Bert logs Ernie off</li>
  </ol>
  
  <p>What is the best way to achieve step 4?</p>