SpongeBob SquarePants

Season 4, Episode 24

Episode Title: Once Bitten

Air Date: 2006-09-29

Overview:

Gary starts biting everyone in town, starting with Squidward. When Squid asks if Gary has been up-to-date on all of his snail shots, SpongeBob reveals that he's never done any of that before. This only sends Squidward into a panic. Does he now have some rare snail-related disease? Is this the end for Squidward?