Handle exceptions in Laravel Event Listener

I want to handle Exceptions in my Listener exactly in handle() method

/**
 * Handle the event.
 *
 * @param DocumentGenerated $event
 * @return void
 */
public function handle(DocumentGenerated $event)
{
    $data = $event->data;
    $this->generateDoc($data);
}

After I read the documentation I found that the handle() method of the listener should return false to stop the event propagation.

I changed the return type of the handle() method from void to boolean and tried returning false but it didn’t stop the event propagation.