Once Junior starts crying all of a sudden, SpongeBob and Patrick offer him various foods in trying to to calm him down, one of which Patrick offers is a chocolate donut. He offers it to him twice during the process and Junior blows a raspberry at Patrick the second time.
Later in the episode, while visiting him at "work" (which is really just Patrick staying at home and watching TV), SpongeBob dumps the contents of Patrick's briefcase on top of Patrick, which includes a bunch of donuts.
"The Donut of Shame"
Patrick is trying to find a way to hide the donut he took from SpongeBob and is also struggling not to eat it. Soon after, he hears the phone ringing, revealing it to be SpongeBob. He then goes to his house to play the tape from a party from the day before.
SpongeBob appears suddenly, and in a quick attempt, Patrick hides the donut from him. Then, SpongeBob plays the tape, only for Patrick to learn that the donut was his all along since it was his birthday.
Patrick then decides to split the donut in half and shares it with SpongeBob, who gets sick since it became spoiled over the time.
The donut demon is shown when Lord Poltergeist puts Mr. Krabs, Patrick, and Squidward into a void. The donut attempts to annoy, torment, and aggravate Patrick by sticking to his head. Every time Patrick tries to reach the donut, his head extends, making it impossible for Patrick to reach it. The donut soon becomes annoyed when Patrick keeps changing its form.
Later in the episode, the donut is shown to be working at the Krusty Krab, only to have a fish bite off a part of him.
After Squidward tells Patrick that he is not eligible to buy an Executive Treatment, Patrick cries that there is nothing more he has wanted in his whole life since the donut he ate earlier that day and that said donut is gone. Squidward then tells him that half of the donut is on his face. Upon realizing this, Patrick licks it off.