idk I religiously firewall my work and personal life but still feel a lot of "personal work employment inertia":

    - I know that everyone doesn't suck to work with
    - I know who to ask for specific institutional knowledge, or to get something done through unofficial channels
    - I know who is more or less competent in specific domains
    - I know what kind of work people do and do not enjoy

etc. It's actually the main reason I haven't done the whole salary optimization by job hopping thing, well that and the effort of hyping myself up into extroverted self-pimp mode