ATTENTION: spoiler!
You really *should* just dial-in, less'n in Oz or other mythical locales..
After the usual series of, "This may be recorded for training purposes" (or ___ whatever) and, "Press 1 for yada.. Press 2 for Yoda.." it says, "Press 7 to hear a duck"
And y'know? It WAS a duck... Quaa-aack ... Quaa-ack
er.. Cackle? :-\ufffd