Colleague in work seems to lie a lot about her home/ family life that are easily proven to be untrue. However, she is really good at her job and has never lied about a work related issue (as far as we know). My point is how can we trust her if she lies about such pointless stuff in such a compulsive way?! HR seems to be saying as a it isn’t a work issue there’s nothing we can do. But how is it not a work issue?