- Donald going mad with godlike power in "Trombone Trouble". Along with him saying, "Power, power, POWER!" and then laughing maniacally. The sharp teeth shown while he's laughing certainly didn't help.
- Donald roaring and taking a huge bite out of a wooden column in "Donald's Double Trouble".
- And then "Down and Out With Donald Duck" combined the two (along with scenes from a few other episodes) to show Donald why his temper disturbed and/or horrified those around him... To absolutely frightening effect.
- His nervous breakdown in Mickey and the Beanstalk is absolutely terrifying. It starts with him madly assembling plates and cutlery into a mock-sandwich, which he ravenously shatters in his champing bill as his friends Mickey and Goofy try to restrain him. Babbling incoherently, he stares at the camera, eyes filled with mad spirals... and then he spots an axe on the mantlepiece. Developing a truly terrifying Nightmare Face, he turns to stare hungrily at Mickey, then slowly creeps out of sight. Fortunately, his attention was actually directed out of the window, as he creeps up on their starving cow, axe held behind his back. Then, eyes pulsing red and yellow, drool pouring from his lower beak, he lunges at her, swinging his axe. It's still a Disney film, so she gets away unhurt, but it's still a horrifying sight — especially when he grabs her tail and tries gnawing on it in sheer desperation.
- The subsequent fury he flies into when Mickey returns and proudly announces he swapped the cow for three "magic" beans isn't as scary, but it's still intense, with the duck's eyes turning red before he leaps up and hangs upside down from the ceiling, tearing his "hair" out whilst spluttering in a fury.
- Donald literally turning into a devil at the end of "Soup's On".
- Donald's treatment by Mickey in the short "Magician Mickey" is really funny (or creepy for some, landing it on this list), but its reappearance in the later special "Down And Out With Donald Duck" makes the scenes really creepy because this time we have no context for them and they're clip-edited together. And we have a blank-eyed Donald under hypnosis dreamily stating that the memories still give him nightmares, meaning that this actually caused Donald psychological trauma.
- The Old Army Game: Donald believes that his entire lower torso and legs were unintentionally amputated after being cut by a razor sharp fence. He becomes so distraught he steals Pete's gun and attempts to kill himself, all while sporting a deranged, psychopathic smile the whole time.
- Just a few seconds later, when Donald discovers that his legs are fine, then looking at Pete to show him that everything's OK, the latter's face is not exactly pleasant.
- "Donalds Snow Fight": The ending where Donald is frozen alive. Twice as much if you realize the audience is supposed to sympathize with his nephews, who put him in that state, just because he beat them fair and square in the snowball fight earlier before they got their act together.
- "Donald Duck And The Gorilla". Donald having to deal with a monstrous Killer Gorilla who broke into his house.
- "Donald's Happy Birthday". Huey, Dewey and Louie are planning to buy a birthday present for Donald, so in the end they decide to buy him a box full of cigars. Donald catches them thinking that they're now into smoking so he decides to give them a lesson... by forcing them to smoke each cigar as punishment. The thick cloud of greasy cigar smoke has them visibly choking and suffocating — one of them tries to flee out of the window, but Donald simply grabs him and hauls him back inside to complete his "punishment".
- "Donald's Lucky Day": Postman Donald has to deliver a package on Friday the 13th. All whilst being harassed by a creepy black cat. And it turns out the package is a bomb.
- "Der Fuehrer's Face": Donalds Disney Acid Sequence after being overworked.
When der Fuehrer saysWe "Heil! Heil!" but still ve work like slavesWhile der Fuehrer brags And lies and rants and ravesVe "Heil! Heil!" and work into our graves! (Heil Hitler!)When der Fuehrer yells"I've got to have more shells!"Ve "Heil! Heil" for him ve make more shellsIf one little shell should blow him right to (Donald Duck gets hit in the head by a large shell)Ve "Heil! Heil!"And wouldn't that be swell!
- For that matter, the title song's third verse, which if you read it, is utterly terrifying when you realize the context:
- This, and whatever happened to Donald on the Pacific front to cause it.
- This comic. The most disturbing part is Donald's satisfied smile at the end.
- Paperinik the Devilish Avenger. This is Donald using his wits, hard-won skills at pretty much everything, and gadgets made by Gyro to take revenge on those who torment him... And is so unstoppable that the very first story has him stealing Scrooge's mattress while he's sleeping on it. Even when played as a superhero he's terrifying: one story showed a group of thieves coming to Duckburg only for Paperinik to show up on a bulldozer, confirm their interntions and throw them out of the road, and a few panels later another thief tells of the time he was about to go to Duckburg when Paperinik came at his home (he's prone to do this to criminals) and showed him a video of some friends of his being beaten up and arrested by the Devilish Avenger himself... And that's him being gentle. No wonder that the people of Duckburg are so quick to believe anyone accusing him of committing crimes, or that the local criminals fear him so much that, when caught in the act by him, they grab their tools and go to the police to give themselves up (at least they dodge the beating).
- From the same comics, the memory-erasing candies. You eat a random candy, and instantly lose memory of the last few hours. While he normally uses them only to protect his identity, the potential abuse is enormous. Then there's the time Daisy found out his identity and he fed her a damaged candy... And she forgot of Donald and started believing her fiancee was Paperinik.
- Donald's wrath in "Reginella's Wedding". Him showing up with a shotgun and plenty of salt shells should be enough to make the readers realize shit is about to go down... Then he single-handedly inflicts a Mook Horror Show on an entire middle ages-equipped army, and while he doesn't kill them the villains are horribly beaten, and so terrified they melt their weapons into agricultural tools when Donald orders them and threatens to wreck everything they still have of healthy if they don't. Yes, if they disobeyed he wasn't going to kill them, just make them wish he did.
- A completely unintended consequence of his wrath: he unleashed his wrath to save Reginella from a forced wedding and protect her Perfect Pacifist People from the villains, but the spectacle prompted the children to imitate him and start to become violent themselves. Considering a violent Pacificus had already appeared once, trying to murder Donald wielding a Flaming Sword, it's no wonder Reginella opted to send Donald back home, even if they were about to marry....
- The Golden Helmet may be Barks' creepiest Donald comic. To start with, there's the premise: that whoever possesses the titular helmet of Olaf the Blue will become absolute ruler of North America. Then, the helmet turns out to be an Artifact of Doom that warps the seekers into becoming mad with power: not just the villain Azure Blue, but the friendly Museum Curator, and even Donald himself. Only sinking it in the Atlantic saves them from its grip.
- Perhaps the most disturbing part is that, aside from the narrator musing that it's almost like there's a curse on the helmet, there's no explicit claim of anything supernatural going on. The helmet doesn't need it.
- Speaking of Barks, the middle of "Vacation Time" is a frightening bit of understated horror. The first part of the story is a lighthearted comedy with Donald and the kids going on vacation, Donald going out of his way to get a picture of a stag that just doesn't want to pose for him, and Donald arguing with a careless, thuggish camper over his unsafe campfire... and then said camper wanders off, and his campfire actually goes out of control. The thug loses everything in the fire, and steals Donald's car to make an escape, leaving Donald and the boys in the middle of a gigantic inferno that burns the forest down. No evil schemes or plots or monsters needed here - just a careless, selfish idiot.
Nightmare Fuel / Donald Duck