I had to take my cat, Captain Nemo, to the vet to be fixed today. I had to starve him the night before so that he didn't have a reaction with the anesthetic, and I can't begin to describe how shocked he was to not be fed in a timely fashion. ("I am shocked, Sir! Shocked, I say!")
He didn't make a peep when I took him to the vet, though. He just looked really scared.