"As long as you can hear them. As long as there's noise around. You're
    safe. But if you ever hear nothing. Worry."
'That's interesting. That's very interesting. It's awfully quiet out
    here, isn't it Ambassador? Ambassador? Londo? Open the door Londo!
    Ambassador, it's not funny. Open the door Londo.
	-- Garibaldi and Vir, "Grail"