Well I'll follow in this thread too.
Dutch is a whiner when he gets frustrated. One of his nicknames is "Mr. Squeaky."
I took an ob class once; the trainer had a Sch titled GSD he used as a demonstration dog. The GSD would be in a downstay and would whine softly the whole time waiting for his chance to work. The trainer would say his dog was demonstrating the "stay and squeak."