Plankton offers a chumstick to Incidental 49, who later considers going to the Krusty Krab for a Krabby Patty instead after discovering that chumsticks cost 10 dollars. Plankton negotiates with her and Incidental 49 stubbornly agrees to purchase his food.
After taking a bite of the chumstick, she spits it out immediately upon its foul taste.
Nat Peterson becomes a frequent customer of Plankton due to his love for chumsticks. However, near the end of the episode it is revealed that they actually made him sick and he only pretended to like the food so Plankton would stop complaining about his restaurant's poor business.
Plankton bursts out of the kitchen, eagerly informing Karen of his plans to drive Mr. Krabs out of business with his chumstick. Health Inspector Yellowtail then enters his restaurant to assure him otherwise, due to an article in the Krabby Kronicle that suggests that the Chum Bucket promotes cannibalism.
When Plankton fails to get milk from a fangtooth fish, he ends up making her angry. Plankton attempts to get out of trouble by offering her a chumstick, but the fangtooth fish whacks it away and attacks him.