Episode name reference to/pun on: The restaurant term "busboy".
October 1, 1997
The Bus Boy is the first part of episode 12 in season 2 of Dexter's Laboratory, which aired on October 1, 1997. In this episode, Becky and Gwen take Dexter's pencil and send it to the back of the bus, where there were several legends about a boy named Billy Bloomberg who went there and never returned. Dexter is determined to go back there despite the concerns of the onlooking students.
While waiting for the bus, Dexter makes sure he's prepared for the test by pulling out his number 2 pencil out of his shirt pocket. The bus arrives and Dexter goes to sit with his friend Douglas E. Mordecai III. Mordecai shows Dexter he's ready for the test by pulling out his number 2 pencil. He and Dexter both make good remarks about Mordecai's pencil and laugh. Their laughing was interrupted as a paper airplane flies into Dexter's head and his glasses coated with spitball. Two girls, Becky and Gwen, start picking on the boy genius.
While Dexter wasn't looking, Becky mistakes his bag of textbooks as a purse, to with Dexter retaliates by telling her it's a bookbag. Becky proceeds to using it as a handbag. Gwen asks Becky about the test, to which she replies. Gwen then takes Dexter's pencil and tosses it back and forth with Becky. Gwen suddenly throws the pencil too high. Dexter and Becky both try to catch it, but fail to do so. Mordecai convinces Dexter to use a pen, but he refuses and goes after his pencil. Dee Dee tries to convince Dexter to turn around. Dexter, despite the concerns of the onlooking students, continues to the back of the bus.
Several students start spinning tales about Billy Bloomberg, the boy who never returned. Dexter finds all of these stories unbelievable until he sees a shadowy hand reach out from the darkness and take the pencil. He heads back there despite listening to the tales. In the back of the bus, Dexter crawls through several layers of gum and encounters a gum monster who returns his flashlight to him. Dexter sees who the real Billy Bloomberg is. Bill then goes to explain what really happened to him, and tells Dexter how he survived all of those years. Dexter frees Bill from the sticky mess using a laser pen. At the front, Dexter introduces Bill to the students, Becky, and Gwen. Dexter tells him that Becky and Gwen were the ones who threw his pencil back there, to which he chews some gum, spits it on the ceiling, and then grab the girls and stick their heads to it.
Dexter then asks Bill for his pencil, with Bill replying that he thought his pencil was a licorice stick. The students and Bill all laugh while Becky and Gwen struggle to get free from their situation.