Life comes at you fast, especially when genetic results are involved. White supremacists pride themselves on the “purity” of their white race, so it can be quite the rude awakening when they realize they aren’t 100 percent European.

You may remember the viral video from The Trisha Show when white supremacist Craig Cobb realized he was 86 percent European mixed with 14 percent Sub-Saharan African. Trisha Goddard infamously said, “Sweetheart, you have a little black in you!” much to Cobb’s chagrin.

Much like Cobb, many white nationalists are heading to take genetic ancestry tests to prove their 100 percent “pure” white ancestry. Saliva tests have made this easy.

After receiving their results, many supremacists take to website groups such as Stormfront (which hosts over 300,000 members) to discuss their findings, according to Stat News.

Seeing how often Stormfront users would use the platform to discuss their results, sociologists Aaron Panofsky and Joan Donovan took to the site to study and examine how the users handled the news.

Panofsky noted that to join Stormfront's community, “they will basically say if you want to be a member of Stormfront you have to be 100 percent white European, not Jewish.”

As this is the case, Panofsky was surprised to see that users who received the news that they were not all white would still post their results.

When the results showed that a user was mixed, the researchers found that the community “overwhelmingly” took the denial route and encouraged users to question the test’s validity.

While some users were satisfied with their “pretty damn pure blood” results, the majority of the test results were met with upset and plain denial.

“They will talk about the mirror test,” said Panofsky. “They will say things like, ‘If you see a Jew in the mirror looking back at you, that’s a problem; if you don’t, you’re fine.'” Others even went so far as to call their results a “Jewish conspiracy.”

Among the conspiracy theorist, however, are users who take a more scientific approach, questioning how the popular genetic testing companies choose people to use as geographical group references, a question that is also asked by researchers.

“There is a mainstream critical literature on genetic ancestry tests — geneticists and anthropologists and sociologists who have said precisely those things: that these tests give an illusion of certainty, but once you know how the sausage is made, you should be much more cautious about these results,” Panofsky said.

Leading genetic ancestry testing sites like Ancestry.com and 23andMe use both pre-existing datasets and personally recruited reference populations.

“When a 23andMe research participant tells us that they have four grandparents all born in the same country — and the country isn’t a colonial nation like the U.S., Canada or Australia — that person becomes a candidate for inclusion in the reference data,” noted 23andMe product specialist Jhulianna Cintron, who also said that her company doesn’t include close relatives or genetic data outliers.

Basically, this means that ancestry results can change based on what a given company has to reference.

Nevertheless, given the history of world migrations, it’s highly unlikely that these white nationalists — or anyone else — are “100 percent pure” anything (other than human).