The Help Wanted sign is a sign that sometimes appears in the window or on the door of the Krusty Krab in certain episodes. It makes its first appearance in the episode "Help Wanted."
It is a white rectangular sign with the words "help wanted" written in red lettering and all capitals.
The sign first appears in the episode "Help Wanted," where it is on the Krusty Krab window. SpongeBob notes that the sign is there, and Squidward panics when he realizes SpongeBob has come to apply for the job.
The sign also appears in "Hooky" when Mr. Krabs is acting as if SpongeBob is going to die due to the hook "taking him away," and puts up the Help Wanted sign on the Krusty Krab.
The sign next appears in the episode "Dying for Pie," when after learning that SpongeBob has eaten a bomb (which he later turned out not to, as the pie was kept in his pocket the whole time), Squidward takes him out to do all the things he wanted to do. As they leave the Krusty Krab, Mr. Krabs can be seen putting the sign in the window. SpongeBob wrongly assumes that Squidward is going to be fired.
The sign next appears at the end of "Welcome to the Chum Bucket," likely because Mr. Krabs had put up the sign when SpongeBob had to work at the Chum Bucket and had not yet had time to take it down.
In the episode "Squid on Strike," Mr. Krabs is seen blowing dust off the sign shortly after firing SpongeBob and Squidward.
For unknown reasons, the sign can be seen in "Krab Borg" when the Krusty Krab first appears in the middle of the episode.
A similar-looking sign appears in the episode "Selling Out," although it does not appear to be the same one.