At some point everyone will encounter a colleague that they don’t get on with. That is perfectly normal, and in this respect the workplace is no different from any other group activity. Not liking a colleague and choosing not to socialize with them outside of work doesn’t really matter provided you are able to work together. But what happens when a colleague is so difficult that you can’t work together? I don’t come equipped with solutions that will work in all scenarios, but I do have are some general principles that may help you decide your best approach.