I was asked the other day about what annoys me the most. To my initial surprise my mind immediately went to "inauthenticity." I was shocked that I didn't automatically say "people who don't signal" or "dirty dishes that don't quite make into the dishwasher." Instead my thoughts went immediately to a core value - in everything I do I want the opportunity to be completely myself and I expect that from others.
From a career stand point I've come to realize that if I don't feel as though I can be myself after spending some time in a job I'm probably in the wrong job. Barbara Moses gives us an excellent definition of authenticity in her book Dish:
Being authentic means not thinking about how you are perceived, talking about what you want, expressing personal views, behaving in a way consistent with values, not changing your behaviour from one situation to another, and having a personal style that is readily communicated.
When people say that you should follow your gut when making career choices, to me that means that you should go in the direction that allows you to be you. That ever prevalent word 'fit' that so many employers use these days speaks directly to the ability to be authentic. You will only 'fit' with an organization that will allow you to be the best version of yourself. That will draw on your greatest talents and allow you to grow.