Evidence of humans fearing technology dates back to the Industrial Revolution, when what came to be known as "technophobia" was first observed.
Eighteenth-century factory workers worried that the development of new machines would take away their livelihoods and ability to survive.
As it turns out, some of those fears were justified.
Violent man-versus-machine conflicts saw members of the British working class destroying the devices that had replaced their jobs well into the 1800s, setting the stage for centuries of anti-robot rhetoric played out in books, movies and ideological movements.
Today, serious fears of a "robot revolution" are only just starting to crystallize for the average person – but it's happening quickly, and spreading far beyond the confines of science fiction.
'The development of full artificial intelligence could spell the end of the human race.' - Stephen Hawking
The year 2015 featured stories of robotic technology, artificial intelligence, autonomous weaponry and what the exponential rate of innovation in these sectors could mean for humanity.
"If any major military power pushes ahead with AI weapon development, a global arms race is virtually inevitable," reads an open letter from July signed by Hawking, Musk, and Steve Wozniak among others. "The endpoint of this technological trajectory is obvious: autonomous weapons will become the Kalashnikovs of tomorrow."
Here are some of the most "terrifying" news stories about robots from 2015, as judged by the reactions of our audience members, staffers and the world at large.
They took our jobs
Japanese data scientists predicted in early December that more than half of all jobs in Japan could be lost to machines by 2035. The same has been forecast for the U.K., which could eventually see 50 per cent of its workers replaced by robots, according to a recent Bank of England study.
"Why? Because 20th-century machines have substituted not just for manual human tasks, but cognitive ones too," said Bank of England chief economist Andy Haldane of the study's results. "The set of human skills machines could reproduce, at lower cost, has both widened and deepened."
Indeed, robots demonstrated an aptitude for jobs that fell far away from factory lines over the past 12 months.
The health-care industry, too, continues to be rocked by new technologies that either promise, or already do everything from take care of dementia patients and perform surgery to sniff out cancer in humans.
Not even dogs are safe from technological unemployment, thanks to the advent sheep-herding drones.
They did our chores (... on their own)
It's hard to say much that's negative about machines that take away our most dreaded household tasks, and yet, the very idea of a robot butler still creeps many people out – particularly now, with AI advancements that have seen bots teaching themselves how to do things without our help.
In August, Tesla unveiled a functional charger prototype for its Model S electric car that can purportedly find a charging port, plug itself in, and juice the vehicle up without any sort of human assistance.
Another project deemed spooky on the viral web this year was Google's deep dive into Artificial Neural Networks and the ensuing images of "dreams" machines were said to have had.
An EU-funded project that made headlines in August similarly featured a robot that was "teaching" itself to cook with information it found online.
And robots are now being taught to disobey humans – for their own safety.
Our safety, on the other hand, is being tackled through research that involves robots punching humans.
They spied on us
Barbie isn't a robot, technically speaking, but rig her up with a Wi-Fi connected microphone system and... well, she isn't not a robot.
Mattel's Hello Barbie toy made waves earlier this year when privacy advocates learned that the "interactive doll" could record children's playtime conversations and respond once the encrypted audio had been transmitted to a cloud server.
The toymaker was criticized for the doll's eavesdropping and data-gathering functions, but it was far from the first company to put products with these capabilities into people's homes.
Former Ontario privacy commissioner Ann Cavoukian went after Samsung in February after it was discovered that its SmartTVs could record private conversations taking place within homes and then share them with third-party services.
They started to look like us
You know what's scarier than a T-800 Terminator's hyperalloy endoskeleton? A robot that looks like one of us.
While they're nowhere near as lifelike as what was seen in the hit 2015 film Ex Machina, humanoid robots with elastic polymer skin and complex facial motor systems brought us one step closer to seeing machines that are indistinguishable from humans – on the surface, at least.
Some even described the latest iteration of Japan's Geminoid F as "sexy" when she made her debut at the World Robot Conference in Beijing last month.
They threatened to replace our lovers & families
A team of European robot ethicists made headlines in September for spearheading an initiative aimed at stopping the development of sex robots for the purported sake of women, children and men everywhere.
"Introducing sex robots that could replace partners is the extreme of this trend, where we start to objectify our human relationships," said one of the project's organizers at the time. "In five to 10 years time this will be a common product in any random sex store."
More recently, chatter has been building about the possibility of machines like Japan's adorable "emotional robot" Pepper and others like it being used to raise children – or even act as a substitute for children (and/or friends)
Once again, pets are not safe from being replaced in this context either.
They got better at killing us
One of 2015's most alarming robot news stories was that of a machine at a German auto factory that killed a 22-year-old human worker by grabbing and crushed him against a metal plate.
Also scary was the volume of stories this year about military advancements in robotic technology.
Lethal autonomous weapons systems (LAWS) were the subject of hot debate all year as lawmakers deliberated over how to regulate robots that could eventually have the ability to select, target and engage in deadly attacks without human intervention.
The United Nations will host a third meeting to discuss the issue with representatives from around the world in April.
Meanwhile, technology companies and government agencies continue to build increasingly deadly machines that could one day replace humans on the battlefield — or rise up and kill us all, if you read some internet forums.
They made us inexplicably angry
Robot fans around the globe were outraged in August to learn that Canada's own "social robot" HitchBOT had been vandalized in Philadelphia and left without a head just two weeks into its first tour across the U.S.
A pair of YouTube pranksters later claimed responsibility for a fake video of the attack, and while online users decried their actions, many people also appeared to delight in watching someone kick Boston Dynamics' Spot the robot dog.
Research released this year by Osaka University also indicated that violence against robots could be a growing issue – particularly among children, who were observed hitting, kicking and verbally abusing a shopping robot in surveillance footage from a Japanese mall this year.
Rise of the cyborgs?
You know what they say: If you can't beat 'em, join 'em... though in this case, it would be more like "incorporate them into your body."
Ray Kurzweil, Google's director of engineering and a noted futurist and inventor, made a startling prediction in June while speaking at a New York conference.
"In the 2030s, we're going to connect directly from the neocortex to the cloud... We will be able to fully back up our brains."
Take that for what you will, but it's worth noting that 78 per cent of the 147 predictions Kurzweil made in his 1999 book The Age of Spiritual Machines were deemed "entirely correct" within 10 years.
Among those predictions were the rise of portable computing, wireless technology replacing cables and the distribution of music in an entirely digital form.