History NightmareFuel / MythBusters

* In an interview session with fans, someone asked about myths they couldn't show, specifically the most disturbing one. Adam then begins telling about the time they decided to test the old adage "The cardboard box has more nutrition than the [insert sugary cereal's name here]." The experiment was simple enough: they had their control rats with normal rat pellets, Group 2 which got Fruit Loops cereal and Group 3 got pellets made of cardboard. Each group had 3 rats. They proceeded to leave the rats with their food with plans to come back and test their health stats after a set period. After said period was over, they came back and discovered Group 3 now consisted of one rat and 2 skeletons! College students who saw this had absolute fits in horror and absolutely ''no one'' wanted to air this experiment.

*** Of course it also quickly becomes an understated MomentOfAwesome for Kari, because she ''stops him.'' She takes a moment to calm herself down, then continues with the experiment until the attending EMT pulls rank. Kari Byron, [[MadeOfIron Woman Of Iron]].

* '''Everything about the Underwater Car myth, ''especially'' the Inverted car revisit.''' Just watching Adam go down with the car can be uncomfortable by itself. But imagining yourself in Adam's place, in a car that's sinking for real is some serious nightmare fuel. Taken UpToEleven with the Turn Turtle revisit. Just watch [[https://www.youtube.com/watch?v=v-eK_cpTsOw this video]] detailing his experience. (Also keep in mind that Adam technically "died" in the experiment. He had to use an emergency air supply, which someone in a real-life situation wouldn't have.)
** In a behind the scenes special, Jamie said that the image of Adam going underwater in the upside-down car [[HypocriticalHeartwarming gave him nightmares the next day.]]
** Adam has stated several times that this was the scariest and most dangerous stunt he'd ever done, as they try not to put themselves in situations where not panicking can make the difference between life and death.

* In a behind the scenes special, Jamie said that the image of Adam going underwater in an upside-down car in the "Turn Turtle Escape" myth [[HypocriticalHeartwarming actually did give him nightmares the next day.]]
** Adam later stated in a web video that this was the most dangerous stunt he'd ever done, as they try not to put themselves in situations where not panicking can make the difference between life and death.

* Jaime seems to be the ButtMonkey of the final season opening shorts, but some of them get downright disturbing considering the program's demographic. The worst offender has to be the one where it implies Adam accidentally crushes Jaime in a car crusher.

* There are two words guaranteed to make long-time fans cringe: "Chicken Hand".

* While the catastrophic failure of a water heater is spectacular to behold, the end result of what several hundred pounds of steel propelled by superheated water, is capable of doing to a house, much less any poor bastard in the flight path, is made more disturbing by the fact it's actually ''[[http://www.combustionsafety.com/secured/pdf/safetyalerts/star_spencer_lesson.pdf happened]].''

* While the catastrophic failure of a water heater is spectacular to behold, the end result of what several hundred pounds of steel, propelled by superheated water, is capable of doing to a house, much less any poor bastard in the flight path, is made more disturbing by the fact it's actually ''happened.''

* The high-speed camera also counts, particularly when showing anything biological.

* The high-speed camera also counts, particularly when showing anything biological.

* As stated in the "A-Z of Explosions" special, [[NothingIsScarier nothing]]. As in, when they try to blow something up and nothing happens, because this means someone has to go over and find out what went wrong and fix it, putting themselves in the potential blast radius of armed explosives.

*** Of course it also quickly becomes an understated MomentOfAwesome for Kari, because she ''stops him.'' She takes a moment to calm herself down, then continues with the experiment until the attending EMT pulls rank. Kary Byron, [[MadeOfIron Woman Of Iron]].

*** Possibly even more disturbing is the reaction of [[CloudCuckoolander Tory]]. Seeing such a [[OOCISseriousBusiness normally goofy and fun-loving guy so deadly serious and obviously concerned]] really drives home how unpleasant the situation must have been. When poor Kari started crying, Tory IMMEDIATELY gave the order for her to be released

*** Possibly even more disturbing is the reaction of [[CloudCuckoolander Tori]]. Seeing such a [[OOCISseriousBusiness normally goofy and fun-loving guy so deadly serious and obviously concerned]] really drives home how unpleasant the situation must have been. When poor Kari started crying, Tori IMMEDIATELY gave the order for her to be released

* Jamie at least had difficulty sleeping the night after they tested the escape methods from a sinking car, noting that it was like watching someone drown right in front of him.

* Jamie turns out to be this for Adam in the NeverBringAKnifeToAGunFight tests. As it turns out, Jamie Hyneman brandishing a (fake) knife, and charging at you while inexplicably ''[[ScreamingWarrior roaring at the top of his lungs]]'' is a little bit scary.

* Likewise, Jamie's time being buried alive...and the coffin started buckling.

* Also ''smashing quick-frozen heads'' to see if they would shatter like glass (as shown in ''JasonX''). They brought out their trusty ballistics gel again, used a similar substance for brains...and used ''actual human skulls''. Then for even more added realism, they used ''pigs' heads''.

* MEATMAN!
** The Meatman is pretty disturbing in itself, but the test it's used for-- showing that a person could be crushed in a closed-dress diving suit by deep water pressure-- will haunt you for a good while. [[http://www.youtube.com/watch?v=LEY3fN4N3D8 Watch...]] if you dare.
* Anything involving torture, with the standout being the Bamboo Torture Myth.
** The Chinese Water Torture myth is this as well. Seeing Kari break down like that was brutal.
** Made worse because we all knew she was with friends who would get her out of there the moment she made the slightest noise. [[ColdBloodedTorture Imagine if it were real, and the people surrounding her didn't give a withered crap about her?]]