How well do you really know your co-workers? They could be scheming and plotting against you to advance their own careers! 

That’s the finding of a survey of 700 people on trust and betrayal at the workplace.

In fact, 81 percent of people feel they’ve been cheated or treated dishonestly by a colleague. And 1 in 10 admitted to “playing dirty” themselves, to get ahead at work - like taking credit for co-workers’ ideas, or throwing them under the bus for mistakes – whether they were responsible or not. 

So, why are so many backstabbers hired in the first place? 

Experts say that lying and scheming workers are often extremely charismatic, which helps them  make a great impression during the interview process. It makes them look like they’re leadership-material. But when they’re hired, they usually follow their own agenda and are much less likely to support fellow workers, or to put the company’s interests ahead of their own.

So, beware of co-workers who are self-obsessed. Experts say that’s usually the main warning sign of someone angling to get ahead – and willing to take down anyone in their way.