For InUniverse examples, look at StepfordConsumer.

!! Female Examples

* Internet telephone service provider Vonage has a commercial where a smiling couple, looking like they are the perfect example of two drones, show up on the doorstep of a new couple to the neighborhood, offering a pie along with a basketball-sized pile of wires as the "bundled" cable, phone and internet service, and even admit the disadvantages: incomprehensible bills and unexplainable charges. The new couple explain they have Vonage phone service. The welcoming female's entire persona - clearly an Unstable Stepford Smiler - "cracks" as she tries to explain that "everyone" in the neighborhood bundles. Her husband (more calmly) echoes her, also saying (with a lot of emphasis) that ''everyone'' there bundles.
** "Puppy!"
* There is an old Russian seriez of breath mint ads showing how you can use them to control people. [[https://www.youtube.com/watch?v=9YU0Rk2x-78 One of these]] features two women telling what a nice and considerate boss they have... even after he tells them they are switching to no-weekends schedule.
!! Male Examples
* That creepy Bob fellow in those commercials for Enzyte's "natural male enhancement". If you can't quite seem to figure out just what he's smiling about from the DoubleEntendre laden narration, [[LateToThePunchline give it time]].
** That is not a smile. That is a rictus of agony from unceasing pain. (He's probably suffering from continuous ''priapism'', an unceasing erection that if not immediately treated can become permanent or cause the man to be unable to ever get an erection. This is that disease that erectile dysfunction pills warn you to see a doctor immediately if you have an erection lasting longer than 4 hours.) The eyes implore the viewer for the merciful release of sweet death.
** http://www.cracked.com/blog/behind-the-smile-the-horrible-truth-about-bob-from-enzyte/
* Advertising/TheBurgerKing from the Burger King advertisements is a particularly disturbing example (it could be that he's wearing an actual mask though...).
* How about the guy in the [[http://www.youtube.com/watch?v=FgfzdgWgEZ4 Axe commercials]]? He turns into chocolate and all the girls in town go crazy and take bites out of him, and all the while he sports that insanely creepy perpetual grin and wide eyes.
** "[[SelfDemonstrating/SpriteBoy Okay. I wouldn't normally admit this, but he makes]] ''[[AccidentalNightmareFuel me]]'' [[SelfDemonstrating/SpriteBoy look cute by comparison.]] Just... (''[[OOCIsSeriousBusiness drops smile and shivers]]'') yeesh..."
* [[http://www.youtube.com/watch?v=hn5EP9StlVA This]] commercial for [=LendingTree=].com.
* The final part of [[http://www.youtube.com/watch?v=ycwM4DqIOj0 this]] ad for a roller coaster in the UK.
* This is a huge part of Main/{{Fanon}} in regards to [[https://www.coca-colacompany.com/stories/coke-lore-sprite-boy this guy]] in recent years, stating that as a result of [[LoonyFan his so-called "fans"]] seeing him as nothing but sheer, straight-up NightmareFuel [[note]] his original purpose was to tell people that it was okay to use the term "Coke" to refer to Coca-Cola [[/note]], he has felt [[TheWoobie unloved and disliked]] by even ''his own company'' for years. Of course, though, they mention that it's only ''slight,'' and that the [[NiceGuy rest]] [[BreakingTheFourthWall of]] [[MotorMouth his]] [[ThePollyanna fanon]] [[FunPersonified personality]] is completely genuine.