SquarePants. In 1987, Hillenburg left the institute to pursue a career in animation. Several years after studying experimental animation at the California Institute of the Arts, Hillenburg met Joe Murray, creator of Rocko's Modern Life, at an animation festival. Murray offered Hillenburg a job as a director of the series. Martin Olson, one of the writers for Rocko's Modern Life, read The Intertidal Zone and encouraged Hillenburg to create a television series with a similar concept. At that point, Hillenburg had not considered creating his own series, but soon realized that this was his chance. Shortly after production on Rocko's Modern Life ended in 1996, Hillenburg began working on SpongeBob SquarePants. Hillenburg used some character designs from his comic book. He designed "SpongeBob's grumpy next door neighbor" as an octopus because he liked the species' large head; he said octopuses "have such a large bulbous head, and Squidward thinks he's an intellectual, so of course he's gonna have a large bulbous head." Hillenburg explained that Squidward is normally drawn with six limbs because "it was really just simpler for animation to draw him with six legs instead of eight". Squidward is only shown with a full set of eight legs in two episodes: the live-action sequence in "Pressure" from season two, and briefly in "Sold!" from season nine. Hillenburg named the character Squidward after the squid, which is closely related to the octopus and has ten limbs. In the words of Squidward's voice actor Rodger Bumpass, the name Octoward "just didn't work". Of Squidward's design, show writer and storyboard artist Vincent Waller said in 2010: Squidward is hard to drawhe has a very odd-shaped head. Fortunately, his emotions are pretty even, but to get a whole lot of big emoting out of him is a challenge. His nose splits everything in half, so it's always like, 'OK, how am I going to work this and still make it read?' Hillenburg thought of making jokes with Squidward ejecting ink but retired it because, according to him, "it always looks like he's pooping his pants". Despite this, inking jokes would appear in the episodes "Giant Squidward" and "Ink Lemonade". The sound of Squidward's footsteps, which evokes that of suction cups pulling on the ground, is produced by rubbing hot water bottles. The footsteps, and those of the rest of the main characters, are recorded by the show's foley crew. Sound designer Jeff