I Was a Teenage Gary: Squidward reluctantly agrees to take care of SpongeBob’s pet snail, Gary, for a few days while SpongeBob is out of town. When Squidward’s negligence causes Gary to become ill, SpongeBob accidentally takes a dose of the snail medicine, which causes SpongeBob to turn into a snail. Squidward is now faced with taking care of both Gary, and the impossible SpongeSnail.