Over 30 and have just made friends with the bright-eyed, bushy-tailed 22-year-old intern? Figure you might take her under your wing, teach her the ropes of how to navigate this crazy professional world?

Think twice. Don’t trust her. She’ll chuck you under the bus at the first chance of a promotion.

This is according the Relationships @Work study by LinkedIn, which says that more than two thirds (68%) of Millennials would sacrifice a friendship with a colleague for the sake of a promotion. By contrast, 58% of Baby Boomers say they wouldn’t even think of doing such a thing.

According to the Financial Post, LinkedIn spokesperson Kathleen Kahlon says the findings suggest Millennials have to claw their way to the top from their junior positions, and are quite willing to do so.

“The Millennials may feel they have to scrape ahead to get that coveted job and they’re going to do anything they can to do that,” she says.

The study also found that one third of Millennials, vs only 5% of Boomers, say friendships help them advance their careers. Another finding is that half of Millennials have no issues about sharing their salary information with co-workers, which may leave managers in the awkward position of having to explain salary gaps. Sixty-nine per cent of Boomers, meanwhile, say sharing this information is a no no.

LinkedIn tweeted the stat about Millennials being basically evil:

But the infographic they created about the study makes no mention of that finding. Instead, it focuses on work friendships being super-awesome.

Interestingly, the Post reports that the study shows Millennials do still value workplace relationships, with 78% – vs 28% of boomers – saying the opportunity to socialize in-person with co-workers makes their workplace better. I guess that is until they decide those friendships are no longer useful.

The moral? Don’t trust anyone under 30.

Here’s the infographic:

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