Cured Duck is a Donald Duck short released 26 October 1945.
Donald Duck pays a visit to Daisy. Bothered by his cigar smoke, she asks him to open a window. He struggles and strains to open it, but it won't budge. He throws a tantrum, smashes the window, tears down curtains, rips a refrigerator off its base, destroys a sofa, breaks some dishes, and even rips telephones and power lines through the wall, virtually wrecking the house. Daisy is appalled at his behavior and shows Donald that he just needed to turn the latch atop the frame to open it. Disappointed, she tells him, "Temper, temper, shame on you. You never see me lose my temper, do you?" Upset at how easily he became angry, she orders Donald to leave until he can control his temper.
While trudging through the streets, Donald kicks a newspaper which flies up in his face. He tears it off, but notices an ad from the Tootsberry Institute of Temperism promising a cure for temper issues. They send an "anger control machine" which promises that if Donald can take its taunts for ten minutes and still control his temper, he'll be cured forever. The machine abuses Donald in numerous ways, punching him, clipping the buttons off his sailor suit, pummeling his feet with a brick, and even blaring loud sounds into his ear. After ten minutes, Donald is still standing, and has not lost his temper. At this point, the machine declares that he's done it and hands him a diploma!
Donald eagerly races back to Daisy's to tell her that he's changed. She tests this by having him open the window. Donald manages to turn the latch atop the window, but still struggles to open it and keep it raised. He uses a fireplace shovel to hold the window open, but it still falls down. Just when it seems he's succeeded, the glass in the window pane falls out and smashes over his head. Donald still remains in good spirits. Daisy is pleased, and decides to go out with him. She rushes upstairs, and returns wearing a strange-looking hat for their date. When he laughs at her hat, she loses her temper and begins smacking him with a broom.
- In a clever, in-universe explanation, Donald's buttons never re-appear after being clipped in this cartoon. They were eliminated to increase animation pencil mileage.