I believe a colleague (who makes up half of the team - I'm the other half!) is a compulsive liar. I researched it and it fits perfectly. She doesn't claim her dad's a secret agent or anything but I have realised, in the time we've worked together, she's told me a number of things that aren't true. She often tells me things about college policy that are false...until I realised what was going on there was a chance I would act on her assertion and then find myself in bother. I'm sure she's even given me false information about a safeguarding issue. I believe it's not malicious. She has very low self esteem and apparently that's part of the problem. I think she often says things to appear to be an expert. She has less teaching experience than me. The advice I've been given by other colleagues is to write everything down and check out anything she tells me. That's a lot of effort. I was also advised to tell my manager but when I've tried to talk to him before he's made it clear he's not willing to listen. It seems there's a culture of not managing people where I work. I believe my only option is to find another job but has anyone got any suggestions?