BazController.php

<?php
use Symfony\Component\EventDispatcher\EventDispatcherInterface;

class BazController
{
    /**
    *@Route("/show")
    */
    public function show(EventDispatcherInterface $eventDispatcher)
    {
        // Dispatch the event
        // all listeners with DisableListenerInterface call the `disable` method
        $eventDispatcher->dispatch(DisableListenerEvent::NAME);
    }