Corvis had hiccups. Standing next to me, I was hearing a periodic 'pfft-thump' sound. Looked over, and his chest was contracting quickly each time. He had sort of a curious look on his face. And then he did as I do to get rid of hiccups -- concentrated on his breathing with a couple of good breaths, and it went away.
I don't think I've seen a dog with hiccups before.
As another note, Corvis is a very jealous dog when I have lady-friends over.