SpongeBob SquarePants - Season 1 Episode 38 Fools in April Be there and be square!
Overview: Squidward wakes up and finds out it is April Fools Day. April Fools Day is SpongeBob's favorite holiday so Squidward becomes paranoid, thinking SpongeBob will play a joke on him. Squidward plays a mean trick on SpongeBob, but after SpongeBob runs home crying, Squidward must apologize.